[Maxima-bugs] [ maxima-Bugs-3023978 ] integrate(x^x+x, x) is wrong

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Bugs item #3023978, was opened at 2010-07-01 20:48
Message generated for change (Comment added) made by folok
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Category: None
Group: None
Status: Closed
Resolution: Fixed
Priority: 5
Private: No
Submitted By: Dieter Kaiser (crategus)
Assigned to: Nobody/Anonymous (nobody)
Summary:  integrate(x^x+x,x) is wrong

Initial Comment:
The following is correct. Maxima returns a noun form:

(%i4) integrate(x^x,x);
(%o4) 'integrate(x^x,x)

This is wrong:

(%i5) integrate(x^x+x,x);
(%o5) x^2/2

The error is in the pattern m2-exp-type-2 in sin.lisp. The pattern is to general.

Dieter Kaiser

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Comment By: Emilio Suarez (folok)
Date: 2010-07-04 15:01

Message:
Sorry I didn't anything about  "current CVS" and things like this. I'll try
to find out and solve tris problem and the "readonly" too
Bye 


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Comment By: Emilio Suarez (folok)
Date: 2010-07-04 14:22

Message:
I downloaded sin.lisp revision 1.61 but the integral  returns x^2/2 as
before. My version of Maxima is 5.21.1 

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Comment By: Dieter Kaiser (crategus)
Date: 2010-07-03 22:22

Message:
The problem has been solved.
The integral is no longer wrong, we get the following with the current CVS
version of Maxima:

(%i2) integrate(x^x+x,x);
(%o2) 'integrate(%e^(x*log(x)),x)+x^2/2

Dieter Kaiser

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Comment By: Emilio Suarez (folok)
Date: 2010-07-03 19:06

Message:
Sorry, What do you mean when you say "Fixed in sin.lisp revision 1.61"? is
the problem solved?



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Comment By: Emilio Suarez (folok)
Date: 2010-07-03 19:01

Message:
Sorry, What do you mind when you say "Fixed in sin.lisp revision 1.61"? is
the problem solved?

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Comment By: Dieter Kaiser (crategus)
Date: 2010-07-01 21:11

Message:
Fixed in sin.lisp revision 1.61. 
Closing this bug report as fixed.
Dieter Kaiser

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