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tit:recursion
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tit:recursion
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type:$type_both
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type:$type_both
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syntax:!recursion `fn' for `v'=`v1' to `v2' [step `st']\
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syntax:!recursion ``fn'' for ``v''=``v1'' to ``v2'' [step ``st'']\
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$ !recursion `fn' for `v' in `v1,v2,v3,...'
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$ !recursion ``fn'' for ``v'' in ``v1,v2,v3,...''
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mean:Computes the outcome of a recursion using the function `fn' in which the\
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mean:Computes the outcome of a recursion using the function ``fn'' in which the\
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  variable `v' is replaced successively by values `v1', ..., `v2'. <p>\
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  variable ``v'' is replaced successively by values ``v1'', ..., ``v2''. <p>\
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  In the second syntax, the values are given with respect to each item in\
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  In the second syntax, the values are given with respect to each item in\
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  the list `v1,v2,...'. </p><p>\
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  the list ``v1,v2,...''. </p><p>\
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  The function `fn' should use the variable `last' to indicate the value of the previous \
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  The function ``fn'' should use the variable ``last'' to indicate the value of the previous \
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  recursion step. And the starting value can be put into the WIMS variable\
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  recursion step. And the starting value can be put into the WIMS variable\
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  <span class="tt">&#36;recursion_start</span>. </p>
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  <span class="tt">&#36;recursion_start</span>. </p>