Integration with non-numeric parameters
- To: mathgroup at smc.vnet.net
- Subject: [mg79759] Integration with non-numeric parameters
- From: ingramfinance at gmail.com
- Date: Fri, 3 Aug 2007 06:36:31 -0400 (EDT)
When I use Mathematica to solve the following
y=x1/(2*sigma^2*t)
Integrate[y, {t, .5, 1}]
I get the following answer:
(0.34657*x1/sigma^2)
OK, so far, so good. It appears that I can generate an answer with a
non-numeric parameter. Note that I am looking for an answer in terms
of x1.
But when I try
q=Exp[-(x1-t)^2/2*sigma^2*t]
Integrate[q, {t, .5,1}]
Now Mathematica does not solve this integral, it just repeats the
command
I am trying to get an expression in terms of x1. Why do I get a
statement like this instead of an answer? There is something about
the functional form of the integrand that is causing the problem, I
just don't know what it is.
Any help you can give me is much appreciated!