Related, but more simple:
(%i4) antidiff(diff(f(x),x,a) + diff(f(x),x,b),x,f(x));
Maxima encountered a Lisp error:
The antidiff function works pretty well, but it should handle problems it can't do more gracefully:
(Lisp Clozure Common Lisp Version 1.6-dev (WindowsX8632)
(%i2) antidiff(diff(f(x),x,a) * f(x)^x,x,f(x));
Maxima encountered a Lisp error:
Stack overflow on value stack.
A nounform would be better than a Lisp error.
Related, but more simple:
(%i4) antidiff(diff(f(x),x,a) + diff(f(x),x,b),x,f(x));
Maxima encountered a Lisp error:
Another example:
(%i12) antidiff(diff(f(x) * (f(x)+1)^a,x),x,f(x));
"Is "a" zero or nonzero?"nonzero;
First reported : http://www.math.utexas.edu/pipermail/maxima/2009/015605.html
I do not observe Lisp errors. All examples work and give a noun form. In revision 1.4 of antid.mac a check was added to avoid endless loops.
Maxima version: 5.23post
Maxima build date: 11:42 1/8/2011
Host type: i686-pc-linux-gnu
Lisp implementation type: SBCL
Lisp implementation version: 1.0.45
(%i5) antidiff(diff(f(x),x,a) * f(x)^x,x,f(x));
(%o5) antidiff(f(x)^x*'diff(f(x),x,a),x,f(x))
(%i6) antidiff(diff(f(x),x,a) + diff(f(x),x,b),x,f(x));
(%o6) antidiff('diff(f(x),x,b)+'diff(f(x),x,a),x,f(x))
(%i7) antidiff(diff(f(x) * (f(x)+1)^a,x),x,f(x));
(%o7) antidiff((f(x)+1)^a*'diff(f(x),x,1)
+a*f(x)*(f(x)+1)^(a-1)*'diff(f(x),x,1),x,f(x))
Dieter Kaiser
As written in the last posting I can not observe an error with the current Maxima version.
Setting the status to pending and the resolution to "works for me".
Dieter Kaiser
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).
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