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1 ### Copyright (C) 1996 John W. Eaton |
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2 ### |
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3 ### This file is part of Octave. |
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4 ### |
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5 ### Octave is free software; you can redistribute it and/or modify it |
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6 ### under the terms of the GNU General Public License as published by |
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7 ### the Free Software Foundation; either version 2, or (at your option) |
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8 ### any later version. |
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9 ### |
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10 ### Octave is distributed in the hope that it will be useful, but |
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11 ### WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ### General Public License for more details. |
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14 ### |
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15 ### You should have received a copy of the GNU General Public License |
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16 ### along with Octave; see the file COPYING. If not, write to the Free |
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17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 ### 02111-1307, USA. |
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19 |
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20 function picks = texas_lotto () |
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21 |
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22 ## usage: texas_lotto |
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23 ## |
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24 ## Pick 6 unique numbers between 1 and 50 that are guaranteed to win |
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25 ## the Texas Lotto. |
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26 ## |
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27 ## See also: rand |
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28 |
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29 if (nargin != 0) |
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30 warning ("win_texas_lotto: ignoring extra arguments"); |
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31 endif |
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32 |
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33 picks = zeros (1,6); |
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34 picks (1) = round (50-49*(1-rand)); |
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35 n = 2; |
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36 while (n < 7) |
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37 tmp = round (50-49*(1-rand)); |
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38 equal = 0; |
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39 for i = 1:n |
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40 if (tmp == picks (i)) |
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41 equal = 1; |
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42 break; |
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43 endif |
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44 endfor |
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45 if (! equal) |
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46 picks (n) = tmp; |
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47 n++; |
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48 endif |
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49 endwhile |
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50 |
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51 picks = sort (picks); |
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52 |
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53 endfunction |
