[Maxima-bugs] [ maxima-Bugs-1265894 ] integrate (exp (a*x), x, 0, inf) => 0 after choosing zero

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Bugs item #1265894, was opened at 2005-08-21 22:27
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Category: Lisp Core
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Robert Dodier (robert_dodier)
Assigned to: Nobody/Anonymous (nobody)
Summary: integrate (exp (a*x), x, 0, inf) => 0 after choosing zero

Initial Comment:
(%i1) integrate (exp (a*x), x, 0, inf);
Is  a  positive, negative, or zero?
z;
Principal Value(%o1)                            0

 -- but --

(%i2) a: 0;
(%o2)                           0
(%i3) integrate (exp (a*x), x, 0, inf);

Integral is divergent


Observed on 5.9.1cvs / gcl 2.6.6 but same behavior
observed in 5.9.1 on cmucl 19a, and 5.9.1cvs / clisp 2.33.

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