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| 32 | reyssat | 1 | !! +exec+ +vardef+ |
| 2 | $lst_tit bound$lst_titend$type_exec |
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| 3 | $(lst_syntax)bound $emph vname$emphend between [integer] |
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| 4 | $emph v1$emphend and $emph v2$emphend [default $emph defaultvalue$emphend] |
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| 5 | </tt> <br>or<br><tt> |
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| 6 | $!bound $emph vname$emphend within $emph list$emphend [default |
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| 7 | $emph defaultvalue$emphend]</tt> <br> |
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| 8 | $lst_mean bound the range of the variable $emph vname$emphend. Usually |
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| 9 | this is used on user-submitted variables. <br> |
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| 10 | The first syntax is usually for numerical variables (integer or real, |
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| 11 | defaults to real). In this case $emph v1$emphend and $emph v2$emphend |
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| 12 | supplies the lower and upper bounds for the value of $emph |
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| 13 | vname$emphend. <br> |
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| 14 | In the second syntax, the value of $emph vname $emphend is compared with |
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| 15 | each item of $emph list$emphend. If no occurrence is found, the value of |
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| 16 | $emph vname$emphend is replaced either by $emph defaultvalue$emphend or |
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| 17 | the first item of $emph list$emphend, according to whether $emph |
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| 18 | defaultvalue$emphend is defined. <br> |
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| 19 | In any case, $emph defaultvalue$emphend is optional. |
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| 20 |