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From: =?ISO-8859-15?Q?Manuel_H=F6ger?=
 <manuel.hoeger@physik.stud.uni-erlangen.de>
Newsgroups: comp.soft-sys.matlab
Subject: symbolic integration problem by change from maple->mupad kernel
Date: Fri, 20 Sep 2013 10:16:37 +0200
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Hello,
I recently had to change from an old Matlab version (2007) with symbolic 
maple Kernel to a relative new one (2012) with a symbolic Mupad Kernel.

I tried to use an old m file which I wrote a few times ago. In the old 
version I was able to integrate over Heaviside step funktions using a 
funktion instead of normal limits.
Now matlab tells me that it is not able to find the explicit Integral.

The code I used is basicly:


syms x s smin En sigma smax eps;


smin=1.16

smax=sym('mp^2+4*eps*En');

sigma = 
sym('(200*(heaviside(s-1.255)*heaviside(1.818-s))+90*(heaviside(s-1.818)*heaviside(3.131-s)))*(s-0.938^2)');

f=int(sigma,s,smin,smax)


In the old version this works without any problems. Is there any 
possibility to do this symbolically with the mupad kernel too?

Greetings
Manu