More gaussian integration bugs
- To: mathgroup at yoda.physics.unc.edu
- Subject: More gaussian integration bugs
- From: lsf at holmes.astro.nwu.edu (Sam Finn)
- Date: Tue, 7 Apr 92 18:24:39 CDT
Mathematica version 2.0.4.5
The following integral is incorrect. The sign of the result is a clear
tip-off; moreover, it is a tabulated integral and can be found in
Gradshteyn & Ryzhik (3.462 4).
Mathematica 2.0 for SPARC
Copyright 1988-91 Wolfram Research, Inc.
-- OPEN LOOK graphics initialized --
In[1]:= Integrate[x Exp[-(x-1)^2] , {x, -Infinity, Infinity}]
3 3
-(2 E Sqrt[Pi] + HypergeometricU[-, -, 1])
2 2
Out[1]= ------------------------------------------
2 E
In[2]:= N[%]
Out[2]= -1.86153
In[3]:= $Version
Out[3]= SPARC 2.0 (November 9, 1991)
In[4]:=