Re: I have difficulty in integrating a function involving Cos and arc tan
- From: hrubin@xxxxxxxxxxxxxxxxxxxx (Herman Rubin)
- Date: 13 Jan 2007 21:24:04 -0500
In article <eo5vdv$opm$1@xxxxxxxxxxxxxxxxxxxxxxxxxx>,
Dave Seaman <dseaman@xxxxxxxxxxxx> wrote:
On 11 Jan 2007 09:37:18 -0800, Abrehet@xxxxxxxxx wrote:
I have difficulty in integrating the following equation on Mathematica.
Mathematica just can not do it. Does any one know how to do it on
Mathematica? A trick to apply? or other possible software for this.
Please help me. The function is as follows:
0.013 *Exp [15.16(ArcTan(0.002 x)])^2 *(ArcTan(0.002 x)
Your parentheses are not balanced. Note also that ArcTan(...) should be
changed to ArcTan[...].
Fixing up the notation will not solve the problem. The
integral, after change of variables, becomes
K * integral of exp(c*u^2)*u/(1+u^2),
which cannot be integrated in closed form.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
hrubin@xxxxxxxxxxxxxxx Phone: (765)494-6054 FAX: (765)494-0558
.
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