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1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2004, 2005, 2006, |
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2 ## 2007 John W. Eaton |
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3 ## |
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4 ## This file is part of Octave. |
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5 ## |
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6 ## Octave is free software; you can redistribute it and/or modify it |
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7 ## under the terms of the GNU General Public License as published by |
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8 ## the Free Software Foundation; either version 3 of the License, or (at |
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9 ## your option) any later version. |
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10 ## |
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11 ## Octave is distributed in the hope that it will be useful, but |
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 ## General Public License for more details. |
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15 ## |
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16 ## You should have received a copy of the GNU General Public License |
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17 ## along with Octave; see the file COPYING. If not, see |
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18 ## <http://www.gnu.org/licenses/>. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} texas_lotto () |
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22 ## Pick 6 unique numbers between 1 and 50 that are guaranteed to win |
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23 ## the Texas Lotto. |
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24 ## @seealso{rand} |
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25 ## @end deftypefn |
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26 |
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27 ## Author: jwe |
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28 |
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29 function picks = texas_lotto () |
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30 |
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31 if (nargin != 0) |
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32 warning ("texas_lotto: ignoring extra arguments"); |
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33 endif |
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34 |
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35 picks = zeros (1,6); |
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36 picks (1) = round (50-49*(1-rand)); |
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37 n = 2; |
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38 while (n < 7) |
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39 tmp = round (50-49*(1-rand)); |
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40 equal = 0; |
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41 for i = 1:n |
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42 if (tmp == picks (i)) |
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43 equal = 1; |
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44 break; |
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45 endif |
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46 endfor |
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47 if (! equal) |
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48 picks (n) = tmp; |
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49 n++; |
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50 endif |
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51 endwhile |
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52 |
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53 picks = sort (picks); |
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54 |
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55 endfunction |
