changeset 11111:84ad75921e35

edit NEWS file
author John W. Eaton <jwe@octave.org>
date Mon, 18 Oct 2010 14:27:46 -0400
parents 0be2d25700a7
children 8ea4cf59c41b
files NEWS
diffstat 1 files changed, 55 insertions(+), 45 deletions(-) [+]
line wrap: on
line diff
--- a/NEWS
+++ b/NEWS
@@ -3,7 +3,7 @@
 
  ** The fltk graphics backend now implements the following callback
     properties: keypressfcn, keyreleasefcn, windowbuttondownfcn,
-    windowbuttonmotionfcn, windowbuttonupfcn, and currentpoint. These
+    windowbuttonmotionfcn, windowbuttonupfcn, and currentpoint.  These
     enable keyboard and mouse interaction, an example of which can be
     seen in the __fltk_ginput__.m script.
 
@@ -187,7 +187,7 @@
     brings better performance if RM has enough rows.  Previously, the
     second form was always used.
 
-    Matrix division is similarly affected. 
+    Matrix division is similarly affected.
 
  ** More efficient handling of triangular matrix factors returned from
     factorizations.  The functions for computing QR, LU and Cholesky
@@ -221,9 +221,9 @@
     functions are now built-in functions, providing better performance.
  
  ** Matlab-style ignoring input and output function arguments using
-    tilde (~) is now supported. Ignored output arguments may be detected
-    from a function using the built-in function `isargout'.
-    For more details, consult the manual.
+    tilde (~) is now supported.  Ignored output arguments may be
+    detected from a function using the built-in function `isargout'.
+    For more details, consult the manual. 
 
  ** The list datatype, deprecated since the introduction of cells, has
     been removed.
@@ -236,7 +236,7 @@
 
  ** The integer math & conversion warnings (Octave:int-convert-nan,
     Octave:int-convert-non-int-val, Octave:int-convert-overflow,
-    Octave:int-math-overflow) have been removed. 
+    Octave:int-math-overflow) have been removed.
 
  ** rem and mod are now built-in functions.  They also handle integer
     types efficiently using integer arithmetic.
@@ -251,21 +251,21 @@
     subsequently fill it by assignments, provided they meet certain
     conditions.  For more information, consult the `spalloc' function,
     which is no longer a mere dummy.  Consequently, nzmax and nnz are no
-    longer always equal in Octave. Octave may also produce a matrix with
-    nnz < nzmax as a result of other operations, so you should
-    consistently use nnz unless you really want to use nzmax 
-    (i.e. the space allocated for nonzero elements).
+    longer always equal in Octave.  Octave may also produce a matrix
+    with nnz < nzmax as a result of other operations, so you should
+    consistently use nnz unless you really want to use nzmax (i.e. the
+    space allocated for nonzero elements).
 
     Sparse concatenation is also affected, and concatenating sparse 
     matrices, especially larger collections, is now significantly more 
-    efficient. This applies to both the [] operator and the 
+    efficient.  This applies to both the [] operator and the 
     cat/vertcat/horzcat functions.
 
- ** It is now possible to optionally employ the xGESDD LAPACK drivers for
-    computing the singular value decomposition using svd(), instead of
-    the default xGESVD, using the configuration pseudo-variable 
-    svd_driver. The xGESDD driver can be up to 6x times faster when 
-    singular vectors are requested, but is reported to be somewhat less 
+ ** It is now possible to optionally employ the xGESDD LAPACK drivers
+    for computing the singular value decomposition using svd(), instead
+    of the default xGESVD, using the configuration pseudo-variable
+    svd_driver.  The xGESDD driver can be up to 6x times faster when
+    singular vectors are requested, but is reported to be somewhat less
     robust on highly ill-conditioned matrices.
 
  ** Configuration pseudo-variables, such as page_screen_output or 
@@ -284,34 +284,38 @@
     changes to the variable in function rm_rf or any of the functions
     it calls.
 
- ** pkg now accepts a -forge option for downloading and installing packages 
-    from OctaveForge automatically. For example, 
+ ** pkg now accepts a -forge option for downloading and installing
+    packages from Octave Forge automatically.  For example, 
     
       pkg install -forge general
     
-    will automatically download the latest release of the general package and
-    attempt to install it. No automatic resolving of dependencies is provided.
-    Further,
+    will automatically download the latest release of the general
+    package and attempt to install it. No automatic resolving of
+    dependencies is provided.  Further,
 
       pkg list -forge
     
     can be used to list all available packages.
 
-  ** The internal data representation of structs has been completely rewritten
-     to make certain optimizations feasible. The field data can now be shared 
-     between structs with equal keys but different dimensions or values, making
-     operations that preserve the fields faster. Economized storage is now used
-     for scalar structs (just like most other scalars), making their usage more
-     memory-efficient. Certain array-like operations on structs (concatenation,
-     uniform cellfun, num2cell) have gained a significant speed-up.
-     Additionally, the octave_scalar_map class now provides a simpler interface
-     to work with scalar structs within a C++ DLD function.
+  ** The internal data representation of structs has been completely
+     rewritten to make certain optimizations feasible.  The field data
+     can now be shared between structs with equal keys but different
+     dimensions or values, making operations that preserve the fields
+     faster.  Economized storage is now used for scalar structs (just
+     like most other scalars), making their usage more
+     memory-efficient.  Certain array-like operations on structs
+     (concatenation, uniform cellfun, num2cell) have gained a
+     significant speed-up.  Additionally, the octave_scalar_map class
+     now provides a simpler interface to work with scalar structs within
+     a C++ DLD function.
 
   ** Two new formats are available for displaying numbers:
-     format short eng
-     format long eng
-     Both display numbers in engineering notation, i.e., mantissa + exponent
-     where the exponent is a multiple of 3.
+
+       format short eng
+       format long eng
+
+     Both display numbers in engineering notation, i.e., mantissa +
+     exponent where the exponent is a multiple of 3.
 
   ** The following new functions were added:
 
@@ -327,26 +331,32 @@
      as display, xv, and xloadimage is no longer supported.  The
      image_viewer function has also been removed.
 
-  ** The behavior of struct assignments to non-struct values has been changed.
-     Previously, it was possible to overwrite an arbitrary value:
+  ** The behavior of struct assignments to non-struct values has been
+     changed.  Previously, it was possible to overwrite an arbitrary
+     value:
       
         a = 1;
         a.x = 2;
 
-     This is no longer possible unless a is an empty matrix or cell array.
+     This is no longer possible unless a is an empty matrix or cell
+     array.
   
-  ** By popular demand, dlmread has been extended to allow specifying a custom
-     value for empty fields and also to accept file IDs opened by fopen. Likewise,
-     dlmwrite can write to file IDs.
+  ** The dlmread function has been extended to allow specifying a custom
+     value for empty fields.
 
-  ** Octave can now optimize away the interpreter overhead of an anonymous function
-     handle, if the function simply calls another function or handle with some of its
-     parameters bound to certain values. Example:
+  ** The dlmread and dlmwrite functions have been modified to accept
+     file IDs (as returned by fopen) in addition to file names.
+
+  ** Octave can now optimize away the interpreter overhead of an
+     anonymous function handle, if the function simply calls another
+     function or handle with some of its parameters bound to certain
+     values.  Example:
      
        f = @(x) sum (x, 1);
 
-     When f is called, the call is forwarded to @sum with the constant 1 appended, and
-     the anonymous function call does not occur on the call stack.
+     When f is called, the call is forwarded to @sum with the constant 1
+     appended, and the anonymous function call does not occur on the
+     call stack.
 
 Summary of important user-visible changes for version 3.2:
 ---------------------------------------------------------