reduce-algebra/buglist/bug48

%From: jpff@maths.bath.ac.uk
%Date:     Tue, 27 Aug 96 15:06:30 BST
%Subject:  Another integration failure

load_package defint;

f := (2*exp(x) - x^2 - 2*x -2)/(exp(x)*x^3);

g := e^(-i*n*phi) * sub(x=b*t*phi^2,f);

%              2
%         b*phi *t    2    4  2          2
%      2*e         - b *phi *t  - 2*b*phi *t - 2
%g := -------------------------------------------
%                 2
%            b*phi *t + i*n*phi  3    6  3
%           e                  *b *phi *t

int(g,phi,-infinity, infinity);

%                repart(n)
%***** abs(atan(-----------)) - 1.57079632679 invalid as number
%                impart(n)

%***** Substitution for log(i) not allowed

% Not a very helpful error message I think!

end;