Stack overflow in definite integral

[mjo]

This was reported by William in #11591. It still occurs with maxima-5.26:

sage: y=(x^2)*exp(x)/(1+exp(x))^2
sage: integrate(y,(x,-1000,1000))
...
;;;
;;; Stack overflow.
;;; Jumping to the outermost toplevel prompt
;;;
...
/home/mjo/src/sage-5.0.beta1/spkg/bin/sage: line 304:   863 Segmentation fault      sage-ipython "$@" -i

[nbruin]

This bug also occurs in Maxima (on at least SBCL and ECL):

(%i1) y: (x^2)*exp(x)/(1+exp(x))^2$
(%i2) integrate(y,x,-1000,1000);
Maxima encountered a Lisp error:

 Control stack exhausted (no more space for function call frames).

so this looks like a straightforward bug in maxima.

[nbruin]

More news on  Maxima bugtracker

(I'm not setting this to "Reported Upstream - little or no feedback" because, while technically correct, I think it's offensive to the Maxima devs, who are generally very diligent and helpful. They haven't had time to give feedback yet)