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Rename *ll* and *ul* to ll and ul in in-interval
[maxima.git]
/
share
/
contrib
/
Zeilberger
/
compatible.mac
blob
bf09e0309a2ba44e580634dc6bf0c7734c607ad3
1
/* Maxima-compatibility definitions */
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/* RISC Institute, Linz, Austria */
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/* by Fabrizio Caruso */
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zb_op(expr) :=
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if atom(expr) then
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expr
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else
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part(expr,0);
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zb_operatorp(expr,operator) :=
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if zb_op(expr)=operator then
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true
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else
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false;
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