new defint.lisp bug - was: new defint.lisp and radexpand:false?
Subject: new defint.lisp bug - was: new defint.lisp and radexpand:false?
From: Richard Fateman
Date: Wed, 11 Jan 2012 10:47:27 -0800
I've been ignoring this, so far. But...
On 1/11/2012 10:21 AM, Edwin Woollett wrote:...
...
> (%i3) integrate(exp(x^5),x,1,2);
> (%o3) (gamma_incomplete(1/5,-32)-gamma_incomplete(1/5,-1))/5
for what it is worth, Mathematica 7 returns
1/5 (-1)^(4/5) (Gamma[1/5, -32] - Gamma[1/5, -1])}
Notice the factor of (-1)^(4/5).