Re: Integrate gives wrong results for a simple polynomial
- To: mathgroup at smc.vnet.net
- Subject: [mg117969] Re: Integrate gives wrong results for a simple polynomial
- From: Scott Hemphill <hemphill at hemphills.net>
- Date: Wed, 6 Apr 2011 05:13:25 -0400 (EDT)
- References: <inerm4$j58$1@smc.vnet.net>
- Reply-to: hemphill at alumni.caltech.edu
Daniel Lichtblau <danl at wolfram.com> writes:
> $Assumptions = p > 0; Integrate[Subscript[x, 1]*(1 + y)^2, {y, -1, 1}]
I can confirm that it fails for 7.0.1 under Linux:
In[1]:= $Version
Out[1]= 7.0 for Linux x86 (64-bit) (February 18, 2009)
In[2]:= $Assumptions = p > 0; Integrate[Subscript[x, 1]*(1 + y)^2, {y, -1, 1}]
x
1
Out[2]= --
3
The correct answer should be eight times this value.
Scott
--
Scott Hemphill hemphill at alumni.caltech.edu
"This isn't flying. This is falling, with style." -- Buzz Lightyear