integrate(log(x)/(x^2+1)^2,x,0,inf) - wrong result

[rtoy]

Imported from SourceForge on 2024-07-04 20:21:02 Created by *anonymous on 2006-01-14 16:12:51 Original: https://sourceforge.net/p/maxima/bugs/855

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(%i1) integrate(log(x)/(x^2+1)^2,x,0,inf); (%o1) (3*%i*%pi^2-4*%pi)/32

Correct result should be -%pi/4.

------------------------------------------------------------- Maxima version: 5.9.2.15cvs Maxima build date: 17:26 1/9/2006 host type: powerpc-apple-darwin8.3.0 lisp-implementation-type: SBCL lisp-implementation-version: 0.9.8 -------------------------------------------------------------

[rtoy]

Imported from SourceForge on 2024-07-04 20:21:03 Created by rtoy on 2006-02-15 19:55:01 Original: https://sourceforge.net/p/maxima/bugs/855/#4654

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• status: open --> closed

[rtoy]

Imported from SourceForge on 2024-07-04 20:21:07 Created by rtoy on 2006-02-15 19:55:01 Original: https://sourceforge.net/p/maxima/bugs/855/#ec6b

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Logged In: YES user_id=28849

Fixed in CVS. The problem was that we were not computing the residues of all the poles.