#546 integrate(r^2/(r^2+1)^(3/2) => GCD bug (use spmod instead)

closed
nobody
None
5
2006-02-24
2004-04-02
Anonymous
No

expression:

integrate(r^2*(1+r^2)^(0-3/2),r,0,R);

R:=positive

Error message:

Quotient by a polynomial of higher degree

Discussion

  • Stavros Macrakis

    • summary: Error when integrate polynomial --> integrate(r^2/(r^2+1)^(3/2) => GCD bug (use spmod instead)
     
  • Stavros Macrakis

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    Sorry for this bug. The problem is in the default GCD routine.

    Please set

    gcd: 'spmod$

    and try again.

     
  • Raymond Toy

    Raymond Toy - 2006-02-24
    • status: open --> closed
     
  • Raymond Toy

    Raymond Toy - 2006-02-24

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    This doesn't seem to happen with maxima 5.9.2.19cvs.
    Closing this bug, but perhaps we should add another bug for gcd.

     

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