On Wed, 14 Apr 2010, Dan Stanger wrote:
< The commercial macsyma was able to integrate this, and after some
< simplification produces this result:
< (((%pi)^4 * l^4)/(sqrt(t - 2 * s + r + 1) * sqrt(t + 2 * s - r + 1) * sqrt(3 *
< t - 2 * s - r - 1) * sqrt(3 * t + 2 * s + r - 1) * (t^2 + 2 * t - r^2 + 1)))
<
< It does not ask any questions involving any of the variables, either.
< Dan Stanger
This is a bug in Macsyma.
I wonder if there is a 'cheat' in the integration code that recognises
this type of integrand?
Frankly, it is puzzling why Maxima's integrate function can only do
2 of the 8 integrations needed.
Leo
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.