Mercurial > hg > octave-lyh
annotate doc/interpreter/plot.txi @ 7984:bbaa5d7d0143
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| author | David Bateman <dbateman@free.fr> |
|---|---|
| date | Mon, 28 Jul 2008 15:47:40 +0200 |
| parents | 90413830b690 |
| children | 23c248d415b5 |
| rev | line source |
|---|---|
| 7018 | 1 @c Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, |
| 2 @c 2006, 2007 John W. Eaton | |
| 3 @c | |
| 4 @c This file is part of Octave. | |
| 5 @c | |
| 6 @c Octave is free software; you can redistribute it and/or modify it | |
| 7 @c under the terms of the GNU General Public License as published by the | |
| 8 @c Free Software Foundation; either version 3 of the License, or (at | |
| 9 @c your option) any later version. | |
| 10 @c | |
| 11 @c Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 12 @c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 @c FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 @c for more details. | |
| 15 @c | |
| 16 @c You should have received a copy of the GNU General Public License | |
| 17 @c along with Octave; see the file COPYING. If not, see | |
| 18 @c <http://www.gnu.org/licenses/>. | |
| 3294 | 19 |
| 4167 | 20 @node Plotting |
| 3294 | 21 @chapter Plotting |
| 6888 | 22 @cindex plotting |
| 23 @cindex graphics | |
| 3294 | 24 |
| 25 @menu | |
| 6888 | 26 * Plotting Basics:: |
| 27 * Advanced Plotting:: | |
| 28 @end menu | |
| 29 | |
| 30 @node Plotting Basics | |
| 31 @section Plotting Basics | |
| 32 | |
| 33 Octave makes it easy to create many different types of two- and | |
| 34 three-dimensional plots using a few high-level functions. | |
| 35 | |
| 36 If you need finer control over graphics, see @ref{Advanced Plotting}. | |
| 37 | |
| 38 @menu | |
| 39 * Two-Dimensional Plots:: | |
| 3294 | 40 * Three-Dimensional Plotting:: |
| 41 * Plot Annotations:: | |
| 42 * Multiple Plots on One Page:: | |
| 3428 | 43 * Multiple Plot Windows:: |
| 6888 | 44 * Printing Plots:: |
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45 * Interacting with plots:: |
| 6888 | 46 * Test Plotting Functions:: |
| 3294 | 47 @end menu |
| 48 | |
| 6888 | 49 @node Two-Dimensional Plots |
| 50 @subsection Two-Dimensional Plots | |
| 51 | |
| 52 The @code{plot} function allows you to create simple x-y plots with | |
| 53 linear axes. For example, | |
| 3294 | 54 |
| 6888 | 55 @example |
| 56 @group | |
| 57 x = -10:0.1:10; | |
| 58 plot (x, sin (x)); | |
| 59 @end group | |
| 60 @end example | |
| 61 | |
| 62 @noindent | |
| 6899 | 63 displays a sine wave shown in @ref{fig:plot}. On most systems, this |
| 6888 | 64 command will open a separate plot window to display the graph. |
| 5134 | 65 |
| 6888 | 66 @float Figure,fig:plot |
| 67 @image{plot,8cm} | |
| 68 @caption{Simple Two-Dimensional Plot.} | |
| 69 @end float | |
| 70 | |
| 5134 | 71 @DOCSTRING(plot) |
| 72 | |
| 6888 | 73 The functions @code{semilogx}, @code{semilogy}, and @code{loglog} are |
| 74 similar to the @code{plot} function, but produce plots in which one or | |
| 75 both of the axes use log scales. | |
| 76 | |
| 77 @DOCSTRING(semilogx) | |
| 6502 | 78 |
| 6888 | 79 @DOCSTRING(semilogy) |
| 6502 | 80 |
| 6888 | 81 @DOCSTRING(loglog) |
| 82 | |
| 83 The functions @code{bar}, @code{barh}, @code{stairs}, and @code{stem} | |
| 84 are useful for displaying discrete data. For example, | |
| 5134 | 85 |
| 6888 | 86 @example |
| 87 @group | |
| 88 hist (randn (10000, 1), 30); | |
| 89 @end group | |
| 90 @end example | |
| 5134 | 91 |
| 6888 | 92 @noindent |
| 93 produces the histogram of 10,000 normally distributed random numbers | |
| 6899 | 94 shown in @ref{fig:hist}. |
| 5134 | 95 |
| 6888 | 96 @float Figure,fig:hist |
| 97 @image{hist,8cm} | |
| 98 @caption{Histogram.} | |
| 99 @end float | |
| 5134 | 100 |
| 101 @DOCSTRING(bar) | |
| 102 | |
| 6877 | 103 @DOCSTRING(barh) |
| 104 | |
| 6888 | 105 @DOCSTRING(hist) |
| 106 | |
| 107 @DOCSTRING(stairs) | |
| 108 | |
| 109 @DOCSTRING(stem) | |
| 110 | |
| 7981 | 111 The @code{contour}, @code{contourf} and @code{contourc} functions |
| 112 produce two-dimensional contour plots from three dimensional data. | |
| 6888 | 113 |
| 5134 | 114 @DOCSTRING(contour) |
| 115 | |
| 7981 | 116 @DOCSTRING(contourf) |
| 117 | |
| 6502 | 118 @DOCSTRING(contourc) |
| 119 | |
| 6888 | 120 The @code{errorbar}, @code{semilogxerr}, @code{semilogyerr}, and |
| 121 @code{loglogerr} functions produces plots with error bar markers. For | |
| 122 example, | |
| 6877 | 123 |
| 6888 | 124 @example |
| 125 x = 0:0.1:10; | |
| 126 y = sin (x); | |
| 127 yp = 0.1 .* randn (size (x)); | |
| 128 ym = -0.1 .* randn (size (x)); | |
| 129 errorbar (x, sin (x), ym, yp); | |
| 130 @end example | |
| 5134 | 131 |
| 6888 | 132 @noindent |
| 6899 | 133 produces the figure shown in @ref{fig:errorbar}. |
| 6502 | 134 |
| 6888 | 135 @float Figure,fig:errorbar |
| 136 @image{errorbar,8cm} | |
| 137 @caption{Errorbar plot.} | |
| 138 @end float | |
| 5134 | 139 |
| 140 @DOCSTRING(errorbar) | |
| 141 | |
| 142 @DOCSTRING(semilogxerr) | |
| 143 | |
| 144 @DOCSTRING(semilogyerr) | |
| 145 | |
| 6888 | 146 @DOCSTRING(loglogerr) |
| 147 | |
| 148 Finally, the @code{polar} function allows you to easily plot data in | |
| 7001 | 149 polar coordinates. However, the display coordinates remain rectangular |
| 6888 | 150 and linear. For example, |
| 151 | |
| 152 @example | |
| 153 polar (0:0.1:10*pi, 0:0.1:10*pi); | |
| 154 @end example | |
| 155 | |
| 156 @noindent | |
| 6899 | 157 produces the spiral plot shown in @ref{fig:polar}. |
| 6888 | 158 |
| 159 @float Figure,fig:polar | |
| 160 @image{polar,8cm} | |
| 161 @caption{Polar plot.} | |
| 162 @end float | |
| 163 | |
| 164 @DOCSTRING(polar) | |
| 165 | |
| 7120 | 166 @DOCSTRING(pie) |
| 167 | |
| 168 @DOCSTRING(quiver) | |
| 169 | |
| 170 @DOCSTRING(pcolor) | |
| 171 | |
| 7153 | 172 @DOCSTRING(area) |
| 173 | |
| 6888 | 174 The axis function may be used to change the axis limits of an existing |
| 175 plot. | |
| 176 | |
| 177 @DOCSTRING(axis) | |
| 178 | |
| 7189 | 179 Similarly the axis limits of the colormap can be changed with the caxis |
| 180 function. | |
| 181 | |
| 182 @DOCSTRING(caxis) | |
| 183 | |
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184 @node Two-dimensional Function Plotting |
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185 @subsubsection Two-dimensional Function Plotting |
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186 |
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187 Octave can plot a function from a function handle inline function or |
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188 string defining the function without the user needing to explicitly |
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189 create the data to be plotted. The function @code{fplot} also generates |
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190 two-dimensional plots with linear axes using a function name and limits |
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191 for the range of the x-coordinate instead of the x and y data. For |
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192 example, |
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193 |
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194 @example |
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195 @group |
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196 fplot (@@sin, [-10, 10], 201); |
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197 @end group |
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198 @end example |
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199 |
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200 @noindent |
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201 produces a plot that is equivalent to the one above, but also includes a |
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202 legend displaying the name of the plotted function. |
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203 |
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204 @DOCSTRING(fplot) |
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205 |
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206 Other functions that can create two-dimensional plots directly from a |
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207 function include @code{ezcontour}, @code{ezcontourf} and @code{ezpolar}. |
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208 |
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209 @DOCSTRING(ezcontour) |
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210 |
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211 @DOCSTRING(ezcontourf) |
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212 |
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213 @DOCSTRING(ezpolar) |
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214 |
| 5134 | 215 @node Three-Dimensional Plotting |
| 6888 | 216 @subsection Three-Dimensional Plotting |
| 217 | |
| 218 The function @code{mesh} produces mesh surface plots. For example, | |
| 219 | |
| 220 @example | |
| 221 @group | |
| 222 tx = ty = linspace (-8, 8, 41)'; | |
| 223 [xx, yy] = meshgrid (tx, ty); | |
| 224 r = sqrt (xx .^ 2 + yy .^ 2) + eps; | |
| 225 tz = sin (r) ./ r; | |
| 226 mesh (tx, ty, tz); | |
| 227 @end group | |
| 228 @end example | |
| 229 | |
| 230 @noindent | |
| 6899 | 231 produces the familiar ``sombrero'' plot shown in @ref{fig:mesh}. Note |
| 6888 | 232 the use of the function @code{meshgrid} to create matrices of X and Y |
| 233 coordinates to use for plotting the Z data. The @code{ndgrid} function | |
| 234 is similar to @code{meshgrid}, but works for N-dimensional matrices. | |
| 235 | |
| 236 @float Figure,fig:mesh | |
| 237 @image{mesh,8cm} | |
| 238 @caption{Mesh plot.} | |
| 239 @end float | |
| 5134 | 240 |
| 6888 | 241 The @code{meshc} function is similar to @code{mesh}, but also produces a |
| 242 plot of contours for the surface. | |
| 243 | |
| 244 The @code{plot3} function displays arbitrary three-dimensional data, | |
| 245 without requiring it to form a surface. For example | |
| 246 | |
| 247 @example | |
| 248 @group | |
| 249 t = 0:0.1:10*pi; | |
| 250 r = linspace (0, 1, numel (t)); | |
| 251 z = linspace (0, 1, numel (t)); | |
| 252 plot3 (r.*sin(t), r.*cos(t), z); | |
| 253 @end group | |
| 254 @end example | |
| 255 | |
| 256 @noindent | |
| 6899 | 257 displays the spiral in three dimensions shown in @ref{fig:plot3}. |
| 6888 | 258 |
| 259 @float Figure,fig:plot3 | |
| 260 @image{plot3,8cm} | |
| 261 @caption{Three dimensional spiral.} | |
| 262 @end float | |
| 263 | |
| 264 Finally, the @code{view} function changes the viewpoint for | |
| 265 three-dimensional plots. | |
| 5134 | 266 |
| 267 @DOCSTRING(mesh) | |
| 268 | |
| 6788 | 269 @DOCSTRING(meshc) |
| 270 | |
| 7153 | 271 @DOCSTRING(hidden) |
| 272 | |
| 7120 | 273 @DOCSTRING(surf) |
| 274 | |
| 275 @DOCSTRING(surfc) | |
| 276 | |
| 5134 | 277 @DOCSTRING(meshgrid) |
| 278 | |
| 6550 | 279 @DOCSTRING(ndgrid) |
| 280 | |
| 6888 | 281 @DOCSTRING(plot3) |
| 282 | |
| 6502 | 283 @DOCSTRING(view) |
| 284 | |
| 7120 | 285 @DOCSTRING(shading) |
| 286 | |
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287 @node Two-dimensional Function Plotting |
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288 @subsubsection Two-dimensional Function Plotting |
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289 |
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290 @DOCSTRING(ezplot3) |
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291 |
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292 @DOCSTRING(ezmesh) |
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293 |
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294 @DOCSTRING(ezmeshc) |
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295 |
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296 @DOCSTRING(ezsurf) |
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297 |
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298 @DOCSTRING(ezsurfc) |
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299 |
| 6888 | 300 @node Plot Annotations |
| 301 @subsection Plot Annotations | |
| 6502 | 302 |
| 6888 | 303 You can add titles, axis labels, legends, and arbitrary text to an |
| 304 existing plot. For example, | |
| 6877 | 305 |
| 6888 | 306 @example |
| 307 @group | |
| 308 x = -10:0.1:10; | |
| 309 plot (x, sin (x)); | |
| 310 title ("sin(x) for x = -10:0.1:10"); | |
| 311 xlabel ("x"); | |
| 312 ylabel ("sin (x)"); | |
| 313 text (pi, 0.7, "arbitrary text"); | |
| 314 legend ("sin (x)"); | |
| 315 @end group | |
| 316 @end example | |
| 6502 | 317 |
| 6888 | 318 The functions @code{grid} and @code{box} may also be used to add grid |
| 319 and border lines to the plot. By default, the grid is off and the | |
| 320 border lines are on. | |
| 5134 | 321 |
| 322 @DOCSTRING(title) | |
| 323 | |
| 6502 | 324 @DOCSTRING(legend) |
| 325 | |
| 326 @DOCSTRING(text) | |
| 327 | |
| 5134 | 328 @DOCSTRING(xlabel) |
| 329 | |
| 6502 | 330 @DOCSTRING(box) |
| 331 | |
| 332 @DOCSTRING(grid) | |
| 333 | |
| 5134 | 334 @node Multiple Plots on One Page |
| 6888 | 335 @subsection Multiple Plots on One Page |
| 336 | |
| 337 Octave can display more than one plot in a single figure. The simplest | |
| 338 way to do this is to use the @code{subplot} function to divide the plot | |
| 339 area into a series of subplot windows that are indexed by an integer. | |
| 340 For example, | |
| 341 | |
| 342 @example | |
| 343 @group | |
| 344 subplot (2, 1, 1) | |
| 345 fplot (@@sin, [-10, 10]); | |
| 346 subplot (2, 1, 2) | |
| 347 fplot (@@cos, [-10, 10]); | |
| 348 @end group | |
| 349 @end example | |
| 350 | |
| 351 @noindent | |
| 352 creates a figure with two separate axes, one displaying a sine wave and | |
| 353 the other a cosine wave. The first call to subplot divides the figure | |
| 354 into two plotting areas (two rows and one column) and makes the first plot | |
| 355 area active. The grid of plot areas created by @code{subplot} is | |
| 356 numbered in column-major order (top to bottom, left to right). | |
| 5134 | 357 |
| 358 @DOCSTRING(subplot) | |
| 359 | |
| 360 @node Multiple Plot Windows | |
| 6888 | 361 @subsection Multiple Plot Windows |
| 362 | |
| 363 You can open multiple plot windows using the @code{figure} function. | |
| 364 For example | |
| 365 | |
| 366 @example | |
| 367 figure (1); | |
| 368 fplot (@@sin, [-10, 10]); | |
| 369 figure (2); | |
| 370 fplot (@@cos, [-10, 10]); | |
| 371 @end example | |
| 372 | |
| 373 @noindent | |
| 374 creates two figures, with the first displaying a sine wave and | |
| 375 the second a cosine wave. Figure numbers must be positive integers. | |
| 5134 | 376 |
| 377 @DOCSTRING(figure) | |
| 378 | |
| 6502 | 379 @node Printing Plots |
| 6888 | 380 @subsection Printing Plots |
| 381 | |
| 382 The @code{print} command allows you to save plots in a variety of | |
| 383 formats. For example, | |
| 384 | |
| 385 @example | |
| 386 print -deps foo.eps | |
| 387 @end example | |
| 388 | |
| 389 @noindent | |
| 390 writes the current figure to an encapsulated PostScript file called | |
| 391 @file{foo.eps}. | |
| 6502 | 392 |
| 393 @DOCSTRING(print) | |
| 394 | |
| 395 @DOCSTRING(orient) | |
| 5134 | 396 |
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397 @node Interacting with plots |
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398 @subsection Interacting with plots |
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399 |
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400 The user can select points on a plot with the @code{ginput} function or |
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401 selction the position at which to place text on the plot with the |
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402 @code{gtext} function using the mouse. |
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403 |
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404 @DOCSTRING(ginput) |
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405 |
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406 @DOCSTRING(waitforbuttonpress) |
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407 |
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408 @DOCSTRING(gtext) |
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409 |
| 6788 | 410 @node Test Plotting Functions |
| 6888 | 411 @subsection Test Plotting Functions |
| 412 | |
| 413 The functions @code{sombrero} and @code{peaks} provide a way to check | |
| 414 that plotting is working. Typing either @code{sombrero} or @code{peaks} | |
| 415 at the Octave prompt should display a three dimensional plot. | |
| 6788 | 416 |
| 6877 | 417 @DOCSTRING(sombrero) |
| 418 | |
| 6788 | 419 @DOCSTRING(peaks) |
| 420 | |
| 6888 | 421 @node Advanced Plotting |
| 422 @section Advanced Plotting | |
| 423 | |
| 424 @menu | |
| 425 * Graphics Objects:: | |
| 426 * Graphics Object Properties:: | |
| 6891 | 427 * Managing Default Properties:: |
| 6889 | 428 * Colors:: |
| 429 * Line Styles:: | |
| 430 * Marker Styles:: | |
| 6888 | 431 * Interaction with gnuplot:: |
| 432 @end menu | |
| 433 | |
| 434 @node Graphics Objects | |
| 435 @subsection Graphics Objects | |
| 436 | |
| 437 Plots in Octave are constructed from the following @dfn{graphics | |
| 438 objects}. Each graphics object has a set of properties that define its | |
| 439 appearance and may also contain links to other graphics objects. | |
| 440 Graphics objects are only referenced by a numeric index, or @dfn{handle}. | |
| 441 | |
| 442 @table @asis | |
| 443 @item root figure | |
| 444 The parent of all figure objects. The index for the root figure is | |
| 445 defined to be 0. | |
| 446 | |
| 447 @item figure | |
| 448 A figure window. | |
| 449 | |
| 450 @item axes | |
| 451 An set of axes. This object is a child of a figure object and may be a | |
| 452 parent of line, text, image, patch, or surface objects. | |
| 453 | |
| 454 @item line | |
| 455 A line in two or three dimensions. | |
| 456 | |
| 457 @item text | |
| 458 Text annotations. | |
| 459 | |
| 460 @item image | |
| 461 A bitmap image. | |
| 462 | |
| 463 @item patch | |
| 464 A filled polygon, currently limited to two dimensions. | |
| 465 | |
| 466 @item surface | |
| 467 A three-dimensional surface. | |
| 468 @end table | |
| 469 | |
| 470 To determine whether an object is a graphics object index or a figure | |
| 471 index, use the functions @code{ishandle} and @code{isfigure}. | |
| 472 | |
| 473 @DOCSTRING(ishandle) | |
| 474 | |
| 475 @DOCSTRING(isfigure) | |
| 476 | |
| 477 The function @code{gcf} returns an index to the current figure object, | |
| 478 or creates one if none exists. Similarly, @code{gca} returns the | |
| 479 current axes object, or creates one (and its parent figure object) if | |
| 480 none exists. | |
| 481 | |
| 482 @DOCSTRING(gcf) | |
| 483 | |
| 484 @DOCSTRING(gca) | |
| 485 | |
| 486 The @code{get} and @code{set} functions may be used to examine and set | |
| 487 properties for graphics objects. For example, | |
| 488 | |
| 489 @example | |
| 490 @group | |
| 491 get (0) | |
| 492 @result{} ans = | |
| 493 @{ | |
| 494 type = root figure | |
| 495 currentfigure = [](0x0) | |
| 496 children = [](0x0) | |
| 497 visible = on | |
| 498 @} | |
| 499 @end group | |
| 500 @end example | |
| 501 | |
| 502 @noindent | |
| 503 returns a structure containing all the properties of the root figure. | |
| 504 As with all functions in Octave, the structure is returned by value, so | |
| 505 modifying it will not modify the internal root figure plot object. To | |
| 506 do that, you must use the @code{set} function. Also, note that in this | |
| 507 case, the @code{currentfigure} property is empty, which indicates that | |
| 508 there is no current figure window. | |
| 509 | |
| 510 The @code{get} function may also be used to find the value of a single | |
| 511 property. For example, | |
| 512 | |
| 513 @example | |
| 514 @group | |
| 515 get (gca (), "xlim") | |
| 516 @result{} [ 0 1 ] | |
| 517 @end group | |
| 518 @end example | |
| 519 | |
| 520 @noindent | |
| 521 returns the range of the x-axis for the current axes object in the | |
| 522 current figure. | |
| 523 | |
| 524 To set graphics object properties, use the set function. For example, | |
| 525 | |
| 526 @example | |
| 527 set (gca (), "xlim", [-10, 10]); | |
| 528 @end example | |
| 529 | |
| 530 @noindent | |
| 531 sets the range of the x-axis for the current axes object in the current | |
| 532 figure to @samp{[-10, 10]}. Additionally, calling set with a graphics | |
| 533 object index as the only argument returns a structure containing the | |
| 534 default values for all the properties for the given object type. For | |
| 535 example, | |
| 536 | |
| 537 @example | |
| 538 set (gca ()) | |
| 539 @end example | |
| 540 | |
| 541 @noindent | |
| 542 returns a structure containing the default property values for axes | |
| 543 objects. | |
| 544 | |
| 545 @DOCSTRING(get) | |
| 546 | |
| 547 @DOCSTRING(set) | |
| 548 | |
| 549 @DOCSTRING(ancestor) | |
| 550 | |
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551 @DOCSTRING(allchild) |
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552 |
| 6888 | 553 You can create axes, line, and patch objects directly using the |
| 554 @code{axes}, @code{line}, and @code{patch} functions. These objects | |
| 555 become children of the current axes object. | |
| 556 | |
| 557 @DOCSTRING(axes) | |
| 558 | |
| 559 @DOCSTRING(line) | |
| 560 | |
| 561 @DOCSTRING(patch) | |
| 562 | |
| 7120 | 563 @DOCSTRING(surface) |
| 564 | |
| 6888 | 565 By default, Octave refreshes the plot window when a prompt is printed, |
| 566 or when waiting for input. To force an update at other times, call the | |
| 567 @code{drawnow} function. | |
| 568 | |
| 569 @DOCSTRING(drawnow) | |
| 570 | |
| 571 Normally, high-level plot functions like @code{plot} or @code{mesh} call | |
| 572 @code{newplot} to initialize the state of the current axes so that the | |
| 573 next plot is drawn in a blank window with default property settings. To | |
| 574 have two plots superimposed over one another, call the @code{hold} | |
| 575 function. For example, | |
| 576 | |
| 577 @example | |
| 578 @group | |
| 579 hold ("on"); | |
| 580 x = -10:0.1:10; | |
| 581 plot (x, sin (x)); | |
| 582 plot (x, cos (x)); | |
| 583 hold ("off"); | |
| 584 @end group | |
| 585 @end example | |
| 586 | |
| 587 @noindent | |
| 588 displays sine and cosine waves on the same axes. If the hold state is | |
| 589 off, consecutive plotting commands like this will only display the last | |
| 590 plot. | |
| 591 | |
| 592 @DOCSTRING(newplot) | |
| 593 | |
| 594 @DOCSTRING(hold) | |
| 595 | |
| 596 @DOCSTRING(ishold) | |
| 597 | |
| 598 To clear the current figure, call the @code{clf} function. To bring it | |
| 599 to the top of the window stack, call the @code{shg} function. To delete | |
| 600 a graphics object, call @code{delete} on its index. To close the | |
| 601 figure window, call the @code{close} function. | |
| 602 | |
| 603 @DOCSTRING(clf) | |
| 604 | |
| 605 @DOCSTRING(shg) | |
| 606 | |
| 607 @DOCSTRING(delete) | |
| 608 | |
| 609 @DOCSTRING(close) | |
| 610 | |
| 611 @DOCSTRING(closereq) | |
| 612 | |
| 613 @node Graphics Object Properties | |
| 614 @subsection Graphics Object Properties | |
| 615 @cindex graphics object properties | |
| 616 | |
| 617 @menu | |
| 618 * Root Figure Properties:: | |
| 6889 | 619 * Figure Properties:: |
| 6888 | 620 * Axes Properties:: |
| 621 * Line Properties:: | |
| 622 * Text Properties:: | |
| 623 * Image Properties:: | |
| 624 * Patch Properties:: | |
| 625 * Surface Properties:: | |
|
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626 * Seacrhing Properties:: |
| 6888 | 627 @end menu |
| 628 | |
| 629 @node Root Figure Properties | |
| 630 @subsubsection Root Figure Properties | |
| 631 | |
| 632 @table @code | |
| 633 @item currentfigure | |
| 6889 | 634 Index to graphics object for the current figure. |
| 635 | |
| 636 @c FIXME -- does this work? | |
| 637 @c @item visible | |
| 638 @c Either @code{"on"} or @code{"off"} to toggle display of figures. | |
| 6888 | 639 @end table |
| 640 | |
| 6889 | 641 @node Figure Properties |
| 642 @subsubsection Figure Properties | |
| 6888 | 643 |
| 644 @table @code | |
| 645 @item nextplot | |
| 6889 | 646 May be one of |
| 647 @table @code | |
| 648 @item "new" | |
| 649 @item "add" | |
| 650 @item "replace" | |
| 651 @item "replacechildren" | |
| 652 @end table | |
| 653 | |
| 6888 | 654 @item closerequestfcn |
| 6889 | 655 Handle of function to call when a figure is closed. |
| 656 | |
| 6888 | 657 @item currentaxes |
| 6889 | 658 Index to graphics object of current axes. |
| 659 | |
| 6888 | 660 @item colormap |
| 6889 | 661 An N-by-3 matrix containing the color map for the current axes. |
| 662 | |
| 6888 | 663 @item visible |
| 6889 | 664 Either @code{"on"} or @code{"off"} to toggle display of the figure. |
| 665 | |
| 6888 | 666 @item paperorientation |
| 6889 | 667 Indicates the orientation for printing. Either @code{"landscape"} or |
| 668 @code{"portrait"}. | |
| 6888 | 669 @end table |
| 670 | |
| 671 @node Axes Properties | |
| 672 @subsubsection Axes Properties | |
| 673 | |
| 674 @table @code | |
| 675 @item position | |
| 6889 | 676 A four-element vector specifying the coordinates of the lower left |
| 677 corner and width and height of the plot, in normalized units. For | |
| 678 example, @code{[0.2, 0.3, 0.4, 0.5]} sets the lower left corner of the | |
| 7001 | 679 axes at @math{(0.2, 0.3)} and the width and height to be 0.4 and 0.5 |
| 6889 | 680 respectively. |
| 681 | |
| 6888 | 682 @item title |
| 6889 | 683 Index of text object for the axes title. |
| 684 | |
| 6888 | 685 @item box |
| 6889 | 686 Either @code{"on"} or @code{"off"} to toggle display of the box around |
| 687 the axes. | |
| 688 | |
| 6888 | 689 @item key |
| 6889 | 690 Either @code{"on"} or @code{"off"} to toggle display of the legend. |
| 691 Note that this property is not compatible with @sc{Matlab} and may be | |
| 692 removed in a future version of Octave. | |
| 693 | |
| 6888 | 694 @item keybox |
| 6889 | 695 Either @code{"on"} or @code{"off"} to toggle display of a box around the |
| 696 legend. Note that this property is not compatible with @sc{Matlab} and | |
| 697 may be removed in a future version of Octave. | |
| 698 | |
| 6888 | 699 @item keypos |
| 6889 | 700 An integer from 1 to 4 specifying the position of the legend. 1 |
| 701 indicates upper right corner, 2 indicates upper left, 3 indicates lower | |
| 702 left, and 4 indicates lower right. Note that this property is not | |
| 703 compatible with @sc{Matlab} and may be removed in a future version of | |
| 704 Octave. | |
| 705 | |
| 6888 | 706 @item dataaspectratio |
| 6889 | 707 A two-element vector specifying the relative height and width of the |
| 708 data displayed in the axes. Setting @code{dataaspectratio} to @samp{1, | |
| 709 2]} causes the length of one unit as displayed on the y axis to be the | |
| 710 same as the length of 2 units on the x axis. Setting | |
| 711 @code{dataaspectratio} also forces the @code{dataaspectratiomode} | |
| 712 property to be set to @code{"manual"}. | |
| 713 | |
| 6888 | 714 @item dataaspectratiomode |
| 6889 | 715 Either @code{"manual"} or @code{"auto"}. |
| 716 | |
| 6888 | 717 @item xlim |
| 718 @itemx ylim | |
| 719 @itemx zlim | |
| 720 @itemx clim | |
| 6889 | 721 Two-element vectors defining the limits for the x, y, and z axes and the |
| 722 Setting one of these properties also forces the corresponding mode | |
| 723 property to be set to @code{"manual"}. | |
| 724 | |
| 6888 | 725 @item xlimmode |
| 726 @itemx ylimmode | |
| 727 @itemx zlimmode | |
| 728 @itemx climmode | |
| 6889 | 729 Either @code{"manual"} or @code{"auto"}. |
| 730 | |
| 6888 | 731 @item xlabel |
| 732 @itemx ylabel | |
| 733 @itemx zlabel | |
| 6889 | 734 Indices to text objects for the axes labels. |
| 735 | |
| 6888 | 736 @item xgrid |
| 737 @itemx ygrid | |
| 738 @itemx zgrid | |
| 6889 | 739 Either @code{"on"} or @code{"off"} to toggle display of grid lines. |
| 740 | |
| 6888 | 741 @item xminorgrid |
| 742 @itemx yminorgrid | |
| 743 @itemx zminorgrid | |
| 6889 | 744 Either @code{"on"} or @code{"off"} to toggle display of minor grid lines. |
| 745 | |
| 6888 | 746 @item xtick |
| 747 @itemx ytick | |
| 748 @itemx ztick | |
| 6889 | 749 Setting one of these properties also forces the corresponding mode |
| 750 property to be set to @code{"manual"}. | |
| 751 | |
| 6888 | 752 @item xtickmode |
| 753 @itemx ytickmode | |
| 754 @itemx ztickmode | |
| 6889 | 755 Either @code{"manual"} or @code{"auto"}. |
| 756 | |
| 6888 | 757 @item xticklabel |
| 758 @itemx yticklabel | |
| 759 @itemx zticklabel | |
| 6889 | 760 Setting one of these properties also forces the corresponding mode |
| 761 property to be set to @code{"manual"}. | |
| 762 | |
| 6888 | 763 @item xticklabelmode |
| 764 @itemx yticklabelmode | |
| 765 @itemx zticklabelmode | |
| 6889 | 766 Either @code{"manual"} or @code{"auto"}. |
| 767 | |
| 6888 | 768 @item xscale |
| 769 @itemx yscale | |
| 770 @itemx zscale | |
| 6889 | 771 Either @code{"linear"} or @code{"log"}. |
| 772 | |
| 6888 | 773 @item xdir |
| 774 @itemx ydir | |
| 775 @itemx zdir | |
| 6889 | 776 Either @code{"forward"} or @code{"reverse"}. |
| 777 | |
| 6888 | 778 @item xaxislocation |
| 779 @itemx yaxislocation | |
| 6889 | 780 Either @code{"top"} or @code{"bottom"} for the x axis and @code{"left"} |
| 781 or @code{"right"} for the y axis. | |
| 782 | |
| 6888 | 783 @item view |
| 6889 | 784 A three element vector specifying the view point for three-dimensional plots. |
| 785 | |
| 6888 | 786 @item visible |
| 6889 | 787 Either @code{"on"} or @code{"off"} to toggle display of the axes. |
| 788 | |
| 6888 | 789 @item nextplot |
| 6889 | 790 May be one of |
| 791 @table @code | |
| 792 @item "new" | |
| 793 @item "add" | |
| 794 @item "replace" | |
| 795 @item "replacechildren" | |
| 796 @end table | |
| 797 | |
| 6888 | 798 @item outerposition |
| 6889 | 799 A four-element vector specifying the coordinates of the lower left |
|
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801 the tics, labels etc. For example, @code{[0.2, 0.3, 0.4, 0.5]} sets the |
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803 height to be 0.4 and 0.5 respectively. |
| 6888 | 804 @end table |
| 805 | |
| 806 @node Line Properties | |
| 807 @subsubsection Line Properties | |
| 808 | |
| 809 @table @code | |
| 810 @itemx xdata | |
| 811 @itemx ydata | |
| 812 @itemx zdata | |
| 813 @itemx ldata | |
| 814 @itemx udata | |
| 815 @itemx xldata | |
| 816 @itemx xudata | |
| 6889 | 817 The data to be plotted. The @code{ldata} and @code{udata} elements are |
| 818 for errobars in the y direction, and the @code{xldata} and @code{xudata} | |
| 819 elements are for errorbars in the x direction. | |
| 820 | |
| 6888 | 821 @item color |
| 6889 | 822 The RGB color of the line, or a color name. @xref{Colors}. |
| 823 | |
| 6888 | 824 @item linestyle |
| 6889 | 825 @itemx linewidth |
| 826 @xref{Line Styles}. | |
| 827 | |
| 6888 | 828 @item marker |
| 829 @item markeredgecolor | |
| 830 @item markerfacecolor | |
| 831 @item markersize | |
| 6889 | 832 @xref{Marker Styles}. |
| 833 | |
| 6888 | 834 @item keylabel |
| 6889 | 835 The text of the legend entry corresponding to this line. Note that this |
| 836 property is not compatible with @sc{Matlab} and may be removed in a | |
| 837 future version of Octave. | |
| 6888 | 838 @end table |
| 839 | |
| 840 @node Text Properties | |
| 841 @subsubsection Text Properties | |
| 842 | |
| 843 @table @code | |
| 844 @item string | |
| 6889 | 845 The character string contained by the text object. |
| 846 | |
| 6888 | 847 @item units |
| 6889 | 848 May be @code{"normalized"} or @code{"graph"}. |
| 849 | |
| 6888 | 850 @item position |
| 6889 | 851 The coordinates of the text object. |
| 852 | |
| 6888 | 853 @item rotation |
| 6889 | 854 The angle of rotation for the displayed text, measured in degrees. |
| 855 | |
| 6888 | 856 @item horizontalalignment |
| 6889 | 857 May be @code{"left"}, @code{"center"}, or @code{"right"}. |
| 858 | |
| 6888 | 859 @item color |
| 6889 | 860 The color of the text. @xref{Colors}. |
| 7189 | 861 |
| 862 @item fontname | |
| 863 The font used for the text. | |
| 864 | |
| 865 @item fontsize | |
| 866 The size of the font, in points to use. | |
| 867 | |
| 868 @item fontangle | |
| 869 Flag whether the font is italic or normal. Valid values are 'normal', | |
| 870 'italic' and 'oblique'. | |
| 871 | |
| 872 @item fontweight | |
| 873 Flag whether the font is bold, etc. Valid values are 'normal', 'bold', | |
| 874 'demi' or 'light'. | |
| 875 | |
| 876 @item interpreter | |
| 877 Determines how the text is rendered. Valid values are 'none', 'tex' or | |
| 878 'latex'. | |
| 6888 | 879 @end table |
| 880 | |
| 7189 | 881 All text objects, including titles, labels, legends, and text, include |
| 882 the property 'interpreter', this property determines the manner in which | |
| 883 special control sequences in the text are rendered. If the interpreter | |
| 884 is set to 'none', then no rendering occurs. At this point the 'latex' | |
| 885 option is not implemented and so the 'latex' interpreter also does not | |
| 886 interpret the text. | |
| 887 | |
| 888 The 'tex' option implements a subset of @sc{TeX} functionality in the | |
| 889 rendering of the text. This allows the insertion of special characters | |
| 890 such as Greek or mathematical symbols within the text. The special | |
| 891 characters are also inserted with a code starting with the back-slash | |
| 892 (\) character, as in the table @ref{tab:extended}. | |
| 893 | |
| 894 In addition, the formating of the text can be changed within the string | |
| 895 with the codes | |
| 896 | |
| 897 @multitable @columnfractions .2 .2 .6 .2 | |
| 898 @item @tab \bf @tab Bold font @tab | |
| 899 @item @tab \it @tab Italic font @tab | |
| 900 @item @tab \sl @tab Oblique Font @tab | |
| 901 @item @tab \rm @tab Normal font @tab | |
| 902 @end multitable | |
| 903 | |
| 904 These are be used in conjunction with the @{ and @} characters to limit | |
| 905 the change in the font to part of the string. For example | |
| 906 | |
| 907 @example | |
| 908 xlabel ('@{\bf H@} = a @{\bf V@}') | |
| 909 @end example | |
| 910 | |
| 911 where the character 'a' will not appear in a bold font. Note that to | |
| 912 avoid having Octave interpret the backslash characters in the strings, | |
| 913 the strings should be in single quotes. | |
| 914 | |
| 915 It is also possible to change the fontname and size within the text | |
| 916 | |
| 917 @multitable @columnfractions .1 .4 .6 .1 | |
| 918 @item @tab \fontname@{@var{fontname}@} @tab Specify the font to use @tab | |
| 919 @item @tab \fontsize@{@var{size}@} @tab Specify the size of the font to | |
| 920 use @tab | |
| 921 @end multitable | |
| 922 | |
| 923 Finally, the superscript and subscripting can be controlled with the '^' | |
| 924 and '_' characters. If the '^' or '_' is followed by a @{ character, | |
| 925 then all of the block surrounded by the @{ @} pair is super- or | |
| 926 sub-scripted. Without the @{ @} pair, only the character immediately | |
| 927 following the '^' or '_' is super- or sub-scripted. | |
| 928 | |
| 929 @float Table,tab:extended | |
| 930 @iftex | |
| 931 @tex | |
| 932 \vskip 6pt | |
| 933 {\hbox to \hsize {\hfill\vbox{\offinterlineskip \tabskip=0pt | |
| 934 \halign{ | |
| 935 \vrule height2.0ex depth1.ex width 0.6pt #\tabskip=0.3em & | |
| 936 # \hfil & \vrule # & # \hfil & # \vrule & | |
| 937 # \hfil & \vrule # & # \hfil & # \vrule & | |
| 938 # \hfil & \vrule # & # \hfil & # \vrule | |
| 939 width 0.6pt \tabskip=0pt\cr | |
| 940 \noalign{\hrule height 0.6pt} | |
| 941 & Code && Sym && Code && Sym && Code && Sym &\cr | |
| 942 \noalign{\hrule} | |
|
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parents:
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changeset
|
951 && $\backslash$Lambda && $\Lambda$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
952 & $\backslash$Pi && $\Pi$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
953 && $\backslash$Theta && $\Theta$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
954 && $\backslash$Sigma && $\Sigma$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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parents:
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changeset
|
955 & $\backslash$varsigma && $\varsigma$ |
|
49810341db91
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changeset
|
956 && $\backslash$Omega && $\Omega$ |
|
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changeset
|
957 && $\backslash$Xi && $\Xi$ &\cr |
|
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diff
changeset
|
958 & $\backslash$Psi && $\Psi$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
959 && $\backslash$perp && $\perp$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
960 && $\backslash$alpha && $\alpha$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
961 & $\backslash$beta && $\beta$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
962 && $\backslash$chi && $\chi$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
963 && $\backslash$delta && $\delta$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
964 & $\backslash$epsilon && $\epsilon$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
965 && $\backslash$phi && $\phi$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
966 && $\backslash$gamma && $\gamma$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
967 & $\backslash$eta && $\eta$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
968 && $\backslash$iota && $\iota$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
969 && $\backslash$varphi && $\varphi$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
970 & $\backslash$kappa && $\kappa$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
971 && $\backslash$lambda && $\lambda$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
972 && $\backslash$mu && $\mu$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
973 & $\backslash$nu && $\nu$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
974 && $\backslash$o && $\o$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
975 && $\backslash$pi && $\pi$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
976 & $\backslash$theta && $\theta$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
977 && $\backslash$rho && $\rho$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
978 && $\backslash$sigma && $\sigma$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
979 & $\backslash$tau && $\tau$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
980 && $\backslash$upsilon && $\upsilon$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
981 && $\backslash$varpi && $\varpi$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
982 & $\backslash$omega && $\omega$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
983 && $\backslash$xi && $\xi$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
984 && $\backslash$psi && $\psi$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
985 & $\backslash$zeta && $\zeta$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
986 && $\backslash$sim && $\sim$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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|
987 && $\backslash$Upsilon && $\Upsilon$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
988 & $\backslash$prime && $\prime$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
989 && $\backslash$leq && $\leq$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
990 && $\backslash$infty && $\infty$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
991 & $\backslash$clubsuit && $\clubsuit$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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diff
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|
992 && $\backslash$diamondsuit && $\diamondsuit$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
993 && $\backslash$heartsuit && $\heartsuit$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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parents:
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changeset
|
994 & $\backslash$spadesuit && $\spadesuit$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
995 && $\backslash$leftrightarrow && $\leftrightarrow$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
996 && $\backslash$leftarrow && $\leftarrow$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
997 & $\backslash$uparrow && $\uparrow$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
998 && $\backslash$rightarrow && $\rightarrow$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
999 && $\backslash$downarrow && $\downarrow$ &\cr |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
1000 & $\backslash$circ && $\circ$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1001 && $\backslash$pm && $\pm$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
1002 && $\backslash$geq && $\geq$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
1003 & $\backslash$times && $\times$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
1004 && $\backslash$propto && $\propto$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1005 && $\backslash$partial && $\partial$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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parents:
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diff
changeset
|
1006 & $\backslash$bullet && $\bullet$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1007 && $\backslash$div && $\div$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1008 && $\backslash$neq && $\neq$ &\cr |
|
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diff
changeset
|
1009 & $\backslash$equiv && $\equiv$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1010 && $\backslash$approx && $\approx$ |
|
49810341db91
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|
1011 && $\backslash$ldots && $\ldots$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1012 & $\backslash$mid && $\mid$ |
|
49810341db91
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diff
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|
1013 && $\backslash$aleph && $\aleph$ |
|
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diff
changeset
|
1014 && $\backslash$Im && $\Im$ &\cr |
|
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diff
changeset
|
1015 & $\backslash$Re && $\Re$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1016 && $\backslash$wp && $\wp$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
1017 && $\backslash$otimes && $\otimes$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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diff
changeset
|
1018 & $\backslash$oplus && $\oplus$ |
|
49810341db91
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changeset
|
1019 && $\backslash$oslash && $\oslash$ |
|
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changeset
|
1020 && $\backslash$cap && $\cap$ &\cr |
|
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changeset
|
1021 & $\backslash$cup && $\cup$ |
|
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changeset
|
1022 && $\backslash$supset && $\supset$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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|
1023 && $\backslash$supseteq && $\supseteq$ &\cr |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1024 & $\backslash$subset && $\subset$ |
|
49810341db91
Correct typos in __go_draw_axes__.m and update Manual
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|
1025 && $\backslash$subseteq && $\subseteq$ |
|
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changeset
|
1026 && $\backslash$in && $\in$ &\cr |
|
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changeset
|
1027 & $\backslash$notin && $\notin$ |
|
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changeset
|
1028 && $\backslash$angle && $\angle$ |
|
49810341db91
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changeset
|
1029 && $\backslash$bigtriangledown && $\bigtriangledown$ &\cr |
|
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Correct typos in __go_draw_axes__.m and update Manual
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|
1030 & $\backslash$langle && $\langle$ |
|
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changeset
|
1031 && $\backslash$rangle && $\rangle$ |
|
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changeset
|
1032 && $\backslash$nabla && $\nabla$ &\cr |
|
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changeset
|
1033 & $\backslash$prod && $\prod$ |
|
49810341db91
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changeset
|
1034 && $\backslash$surd && $\surd$ |
|
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|
1035 && $\backslash$cdot && $\cdot$ &\cr |
|
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changeset
|
1036 & $\backslash$neg && $\neg$ |
|
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changeset
|
1037 && $\backslash$wedge && $\wedge$ |
|
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changeset
|
1038 && $\backslash$vee && $\vee$ &\cr |
|
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changeset
|
1039 & $\backslash$Leftrightarrow && $\Leftrightarrow$ |
|
49810341db91
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changeset
|
1040 && $\backslash$Leftarrow && $\Leftarrow$ |
|
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changeset
|
1041 && $\backslash$Uparrow && $\Uparrow$ &\cr |
|
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|
1042 & $\backslash$Rightarrow && $\Rightarrow$ |
|
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|
1043 && $\backslash$Downarrow && $\Downarrow$ |
|
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Correct typos in __go_draw_axes__.m and update Manual
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changeset
|
1044 && $\backslash$diamond && $\diamond$ &\cr |
|
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changeset
|
1045 & $\backslash$copyright && $\copyright$ |
|
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changeset
|
1046 && $\backslash$rfloor && $\rfloor$ |
|
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|
1047 && $\backslash$lceil && $\lceil$ &\cr |
|
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changeset
|
1048 & $\backslash$lfloor && $\lfloor$ |
|
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changeset
|
1049 && $\backslash$rceil && $\rceil$ |
|
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|
1050 && $\backslash$int && $\int$ &\cr |
| 7189 | 1051 \noalign{\hrule height 0.6pt} |
| 1052 }}\hfill}} | |
| 1053 @end tex | |
| 1054 @end iftex | |
| 1055 @ifnottex | |
| 1056 @multitable @columnfractions .125 .25 .25 .25 .125 | |
|
7608
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|
1057 @item @tab \forall @tab \exists @tab \ni @tab |
|
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|
1058 @item @tab \cong @tab \Delta @tab \Phi @tab |
|
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|
1059 @item @tab \Gamma @tab \vartheta @tab \Lambda @tab |
|
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|
1060 @item @tab \Pi @tab \Theta @tab \Sigma @tab |
|
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|
1061 @item @tab \varsigma @tab \Omega @tab \Xi @tab |
|
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|
1062 @item @tab \Psi @tab \perp @tab \alpha @tab |
|
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|
1063 @item @tab \beta @tab \chi @tab \delta @tab |
|
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|
1064 @item @tab \epsilon @tab \phi @tab \gamma @tab |
|
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|
1065 @item @tab \eta @tab \iota @tab \varphi @tab |
|
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|
1066 @item @tab \kappa @tab \lambda @tab \mu @tab |
|
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1067 @item @tab \nu @tab \o @tab \pi @tab |
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1068 @item @tab \theta @tab \rho @tab \sigma @tab |
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1069 @item @tab \tau @tab \upsilon @tab \varpi @tab |
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1070 @item @tab \omega @tab \xi @tab \psi @tab |
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1071 @item @tab \zeta @tab \sim @tab \Upsilon @tab |
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1072 @item @tab \prime @tab \leq @tab \infty @tab |
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1073 @item @tab \clubsuit @tab \diamondsuit @tab \heartsuit @tab |
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1074 @item @tab \spadesuit @tab \leftrightarrow @tab \leftarrow @tab |
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1075 @item @tab \uparrow @tab \rightarrow @tab \downarrow @tab |
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1076 @item @tab \circ @tab \pm @tab \geq @tab |
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1077 @item @tab \times @tab \propto @tab \partial @tab |
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1078 @item @tab \bullet @tab \div @tab \neq @tab |
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1079 @item @tab \equiv @tab \approx @tab \ldots @tab |
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1080 @item @tab \mid @tab \aleph @tab \Im @tab |
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1081 @item @tab \Re @tab \wp @tab \otimes @tab |
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1082 @item @tab \oplus @tab \oslash @tab \cap @tab |
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1083 @item @tab \cup @tab \supset @tab \supseteq @tab |
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1084 @item @tab \subset @tab \subseteq @tab \in @tab |
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1085 @item @tab \notin @tab \angle @tab \bigrightriangledown @tab |
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1086 @item @tab \langle @tab \rangle @tab \nabla @tab |
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1087 @item @tab \prod @tab \surd @tab \cdot @tab |
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1088 @item @tab \neg @tab \wedge @tab \vee @tab |
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1089 @item @tab \Leftrightarrow @tab \Leftarrow @tab \Uparrow @tab |
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1090 @item @tab \Rightarrow @tab \Downarrow @tab \diamond @tab |
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1091 @item @tab \copyright @tab \lfloor @tab \lceil @tab |
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1092 @item @tab \rfloor @tab \rceil @tab \int @tab |
| 7189 | 1093 @end multitable |
| 1094 @end ifnottex | |
| 1095 @caption{Available special characters in @sc{TeX} mode} | |
| 1096 @end float | |
| 1097 | |
| 1098 A complete example showing the capabilities of the extended text is | |
| 1099 | |
| 1100 @example | |
| 1101 @group | |
| 1102 x = 0:0.01:3; | |
| 1103 plot(x,erf(x)); | |
| 1104 hold on; | |
| 1105 plot(x,x,"r"); | |
| 1106 axis([0, 3, 0, 1]); | |
| 1107 text(0.65, 0.6175, strcat('\leftarrow x = @{2/\surd\pi', | |
| 1108 ' @{\fontsize@{16@}\int_@{\fontsize@{8@}0@}^@{\fontsize@{8@}x@}@}', | |
| 1109 ' e^@{-t^2@} dt@} = 0.6175')) | |
| 1110 @end group | |
| 1111 @end example | |
| 1112 | |
| 1113 @ifnotinfo | |
| 1114 @noindent | |
| 1115 The result of which can be seen in @ref{fig:extendedtext} | |
| 1116 | |
| 1117 @float Figure,fig:extendedtext | |
| 1118 @image{extended,8cm} | |
| 1119 @caption{Example of inclusion of text with the @sc{TeX} interpreter} | |
| 1120 @end float | |
| 1121 @end ifnotinfo | |
| 1122 | |
| 6888 | 1123 @node Image Properties |
| 1124 @subsubsection Image Properties | |
| 1125 | |
| 1126 @table @code | |
| 1127 @item cdata | |
| 6889 | 1128 The data for the image. Each pixel of the image corresponds to an |
| 1129 element of @code{cdata}. The value of an element of @code{cdata} | |
| 1130 specifies the row-index into the colormap of the axes object containing | |
| 1131 the image. The color value found in the color map for the given index | |
| 1132 determines the color of the pixel. | |
| 1133 | |
| 1134 @item xdata | |
| 6888 | 1135 @itemx ydata |
| 7001 | 1136 Two-element vectors specifying the range of the x- and y- coordinates for |
| 6889 | 1137 the image. |
| 6888 | 1138 @end table |
| 1139 | |
| 1140 @node Patch Properties | |
| 1141 @subsubsection Patch Properties | |
| 1142 | |
| 1143 @table @code | |
| 1144 @item cdata | |
| 1145 @itemx xdata | |
| 1146 @itemx ydata | |
| 1147 @itemx zdata | |
| 6889 | 1148 Data defining the patch object. |
| 1149 | |
| 6888 | 1150 @item facecolor |
| 6889 | 1151 The fill color of the patch. @xref{Colors}. |
| 1152 | |
| 6888 | 1153 @item facealpha |
| 6889 | 1154 A number in the range [0, 1] indicating the transparency of the patch. |
| 1155 | |
| 6888 | 1156 @item edgecolor |
| 6889 | 1157 The color of the line defining the patch. @xref{Colors}. |
| 1158 | |
| 6888 | 1159 @item linestyle |
| 6889 | 1160 @itemx linewidth |
| 1161 @xref{Line Styles}. | |
| 1162 | |
| 6888 | 1163 @item marker |
| 6889 | 1164 @itemx markeredgecolor |
| 1165 @itemx markerfacecolor | |
| 1166 @itemx markersize | |
| 1167 @xref{Marker Styles}. | |
| 6888 | 1168 @end table |
| 1169 | |
| 1170 @node Surface Properties | |
| 1171 @subsubsection Surface Properties | |
| 1172 | |
| 1173 @table @code | |
| 1174 @item xdata | |
| 1175 @itemx ydata | |
| 1176 @itemx zdata | |
| 6889 | 1177 The data determining the surface. The @code{xdata} and @code{ydata} |
| 1178 elements are vectors and @code{zdata} must be a matrix. | |
| 1179 | |
| 6888 | 1180 @item keylabel |
| 6889 | 1181 The text of the legend entry corresponding to this surface. Note that |
| 1182 this property is not compatible with @sc{Matlab} and may be removed in a | |
| 1183 future version of Octave. | |
| 1184 @end table | |
| 1185 | |
|
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1186 @node Seacrhing Properties |
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1187 @subsubsection Seacrhing Properties |
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1188 |
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1189 @DOCSTRING(findobj) |
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1190 |
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1191 @DOCSTRING(findall) |
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1192 |
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1193 |
| 6891 | 1194 @node Managing Default Properties |
| 1195 @subsection Managing Default Properties | |
| 1196 | |
| 6892 | 1197 Object properties have two classes of default values, @dfn{factory |
| 1198 defaults} (the initial values) and @dfn{user-defined defaults}, which | |
| 1199 may override the factory defaults. | |
| 6891 | 1200 |
| 1201 Although default values may be set for any object, they are set in | |
| 1202 parent objects and apply to child objects. For example, | |
| 1203 | |
| 1204 @example | |
| 1205 set (0, "defaultlinecolor", "green"); | |
| 1206 @end example | |
| 1207 | |
| 1208 @noindent | |
| 1209 sets the default line color for all objects. The rule for constructing | |
| 1210 the property name to set a default value is | |
| 1211 | |
| 1212 @example | |
| 1213 default + @var{object-type} + @var{property-name} | |
| 1214 @end example | |
| 1215 | |
| 1216 This rule can lead to some strange looking names, for example | |
| 1217 @code{defaultlinelinewidth"} specifies the default @code{linewidth} | |
| 1218 property for @code{line} objects. | |
| 1219 | |
| 1220 The example above used the root figure object, 0, so the default | |
| 1221 property value will apply to all line objects. However, default values | |
| 1222 are hierarchical, so defaults set in a figure objects override those | |
| 1223 set in the root figure object. Likewise, defaults set in axes objects | |
| 1224 override those set in figure or root figure objects. For example, | |
| 1225 | |
| 1226 @example | |
| 1227 @group | |
| 1228 subplot (2, 1, 1); | |
| 1229 set (0, "defaultlinecolor", "red"); | |
| 1230 set (1, "defaultlinecolor", "green"); | |
| 1231 set (gca (), "defaultlinecolor", "blue"); | |
| 1232 line (1:10, rand (1, 10)); | |
| 1233 subplot (2, 1, 2); | |
| 1234 line (1:10, rand (1, 10)); | |
| 1235 figure (2) | |
| 1236 line (1:10, rand (1, 10)); | |
| 1237 @end group | |
| 1238 @end example | |
| 1239 | |
| 1240 @noindent | |
| 1241 produces two figures. The line in first subplot window of the first | |
| 1242 figure is blue because it inherits its color from its parent axes | |
| 1243 object. The line in the second subplot window of the first figure is | |
| 1244 green because it inherits its color from its parent figure object. The | |
| 1245 line in the second figure window is red because it inherits its color | |
| 1246 from the global root figure parent object. | |
| 1247 | |
| 1248 To remove a user-defined default setting, set the default property to | |
| 1249 the value @code{"remove"}. For example, | |
| 1250 | |
| 1251 @example | |
| 1252 set (gca (), "defaultlinecolor", "remove"); | |
| 1253 @end example | |
| 1254 | |
| 1255 @noindent | |
| 1256 removes the user-defined default line color setting from the current axes | |
| 1257 object. | |
| 1258 | |
| 1259 Getting the @code{"default"} property of an object returns a list of | |
| 1260 user-defined defaults set for the object. For example, | |
| 1261 | |
| 1262 @example | |
| 1263 get (gca (), "default"); | |
| 1264 @end example | |
| 1265 | |
| 1266 @noindent | |
| 1267 returns a list of user-defined default values for the current axes | |
| 1268 object. | |
| 1269 | |
| 1270 Factory default values are stored in the root figure object. The | |
| 1271 command | |
| 1272 | |
| 1273 @example | |
| 1274 get (0, "factory"); | |
| 1275 @end example | |
| 1276 | |
| 1277 @noindent | |
| 1278 returns a list of factory defaults. | |
| 1279 | |
| 6889 | 1280 @node Colors |
| 1281 @subsection Colors | |
| 1282 | |
| 1283 Colors may be specified as RGB triplets with values ranging from zero to | |
| 1284 one, or by name. Recognized color names include @code{"blue"}, | |
| 1285 @code{"black"}, @code{"cyan"}, @code{"green"}, @code{"magenta"}, | |
| 1286 @code{"red"}, @code{"white"}, and @code{"yellow"}. | |
| 1287 | |
| 1288 @node Line Styles | |
| 1289 @subsection Line Styles | |
| 7001 | 1290 Line styles are specified by the following properties: |
| 6889 | 1291 |
| 1292 @table @code | |
| 1293 @item linestyle | |
| 1294 May be one of | |
| 1295 @table @code | |
| 1296 @item "-" | |
| 1297 Solid lines. | |
| 1298 @item "--" | |
| 1299 Dashed lines. | |
| 1300 @item ":" | |
| 1301 Points. | |
| 1302 @item "-." | |
| 1303 A dash-dot line. | |
| 1304 @end table | |
| 1305 | |
| 1306 @item linewidth | |
| 1307 A number specifying the width of the line. The default is 1. A value | |
| 1308 of 2 is twice as wide as the default, etc. | |
| 1309 @end table | |
| 1310 | |
| 1311 @node Marker Styles | |
| 1312 @subsection Marker Styles | |
| 7001 | 1313 Marker styles are specified by the following properties: |
| 6889 | 1314 @table @code |
| 1315 @item marker | |
| 1316 A character indicating a plot marker to be place at each data point, or | |
| 1317 @code{"none"}, meaning no markers should be displayed. | |
| 1318 | |
| 1319 @itemx markeredgecolor | |
| 1320 The color of the edge around the marker, or @code{"auto"}, meaning that | |
| 1321 the edge color is the same as the face color. @xref{Colors}. | |
| 1322 | |
| 1323 @itemx markerfacecolor | |
| 1324 The color of the marker, or @code{"none"} to indicate that the marker | |
| 1325 should not be filled. @xref{Colors}. | |
| 1326 | |
| 1327 @itemx markersize | |
| 1328 A number specifying the size of the marker. The default is 1. A value | |
| 1329 of 2 is twice as large as the default, etc. | |
| 6888 | 1330 @end table |
| 1331 | |
| 4167 | 1332 @node Interaction with gnuplot |
| 6888 | 1333 @subsection Interaction with @code{gnuplot} |
| 3428 | 1334 |
| 1335 @DOCSTRING(gnuplot_binary) | |
| 1336 | |
| 6331 | 1337 @DOCSTRING(gnuplot_use_title_option) |