[Maxima-bugs] [ maxima-Bugs-3041267 ] jacobi_cs(x, 1) returns a wrong expression

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Bugs item #3041267, was opened at 2010-08-07 23:35
Message generated for change (Comment added) made by crategus
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Category: Lisp Core - Simplification
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Dieter Kaiser (crategus)
Assigned to: Nobody/Anonymous (nobody)
Summary: jacobi_cs(x,1) returns a wrong expression

Initial Comment:
jacobi_cs(x,1) returns a wrong expression:

(%i1) jacobi_cs(x,1);
(%o1) ''csch(x)

(%i2) :lisp $%
(($CSCH SIMP) $X)

It has to be ((%csch simp) $x). I have observed this problem when trying to exponentialize a simplified jacobi_cs function:

(%i3) exponentialize(jacobi_cs(x,1));
(%o3) ''csch(x)

But of course it is possible to exponentialize the csch function:

(%i4) exponentialize(csch(x));
(%o4) 2/(%e^x-%e^-x)

Dieter Kaiser

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>Comment By: Dieter Kaiser (crategus)
Date: 2010-08-08 00:17

Message:
Fixed in ellipt.lisp revision 1.74.
Closing this bug report as fixed.
Dieter Kaiser

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