Mathematica computes a different answer in version 7
- To: mathgroup at smc.vnet.net
- Subject: [mg93989] Mathematica computes a different answer in version 7
- From: Jack Dyson <jackdyson31 at libero.it>
- Date: Mon, 1 Dec 2008 07:00:42 -0500 (EST)
Hi everyone,
Consider this line:
Assuming[{\[Beta] \[Element] Reals, \[Eta] \[Element]
Reals, \[Lambda] \[Element] Reals, k \[Element] Integers,
x \[Element] Reals,
y \[Element] Reals, \[Lambda] > 0, \[Beta] > 0, \[Eta] > 0, k >= 0},
Integrate[
y^k Exp[-(y/\[Beta])^2]*
Exp[-(\[Lambda] (
x - y)/\[Eta])^2], {y, -\[Infinity], \[Infinity]}]]
which is the moment convolution of two Gaussians. The answers I get in
M6 and M7 are completely different!
Is there something I am doing wrong here ?
Regards to all
Jack