odd bug in integrate: using x(t) instead of x get answer
Subject: odd bug in integrate: using x(t) instead of x get answer
From: Richard Fateman
Date: Sun, 14 Jul 2013 08:23:04 -0700
s: 1/sqrt(log(x)+a*x+b)
integrate(s,x) --> not integrated.
u: subst(x(t),x,s);
integrate(u,x(t)) --> integrated, but maybe nonsense.
The answer looks ok if a=b=0.
Also, if a=0, the integral can be done (correctly).