[Maxima-bugs] [ maxima-Bugs-1668376 ] risch & *integrator-level* unbound

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Bugs item #1668376, was opened at 2007-02-25 08:18
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Category: Lisp Core - Integration
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Barton Willis (willisbl)
Assigned to: Nobody/Anonymous (nobody)
Summary: risch & *integrator-level* unbound

Initial Comment:
risch(cosh(x)) --> lisp error, but risch(cos(x)) i OK:

(%i4) risch(cosh(x),x);
Maxima encountered a Lisp error:
 Error in MACSYMA-TOP-LEVEL [or a callee]: The variable *INTEGRATOR-LEVEL* is unbound.

(%i5) risch(cos(x),x);
(%o5) sin(x)

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