RE: Can you help me to solve this Integrate using Mathematica ?
- To: mathgroup at smc.vnet.net
- Subject: [mg36256] RE: [mg36221] Can you help me to solve this Integrate using Mathematica ?
- From: "DrBob" <drbob at bigfoot.com>
- Date: Wed, 28 Aug 2002 04:16:17 -0400 (EDT)
- Reply-to: <drbob at bigfoot.com>
- Sender: owner-wri-mathgroup at wolfram.com
Mathematica version 4.2 has no problem with this one. All you have to
do is spell things correctly.
Integrate[Exp[-a/x]/(x^2 - b^2), {x, 0, Infinity}]
If[Re[a] > 0 && Arg[b^2] !=
0, (1/2)*Sqrt[-(1/b^2)]*
(2*CosIntegral[
a*Sqrt[-(1/b^2)]]*
Sin[a*Sqrt[-(1/b^2)]] +
Cos[a*Sqrt[-(1/b^2)]]*
(Pi - 2*SinIntegral[
a*Sqrt[-(1/b^2)]])),
Integrate[1/(E^(a/x)*
(-b^2 + x^2)),
{x, 0, Infinity}]]
Bobby Treat
-----Original Message-----
From: Valdeci Pereira Mariano de Souza [mailto:vpms at rc.unesp.br]
To: mathgroup at smc.vnet.net
Subject: [mg36256] [mg36221] Can you help me to solve this Integrate using
Mathematica ?
Dear Group
I would like to know, if is possible to solve
Integrate[(exp[-a/x])/(x^2-b^2),{x,0,infinity}] with
a and b constant ( Real )
using Mathematica.
Thankfully,
Valdeci Mariano
*********************************************************************
Valdeci Mariano de Souza
Master´s Degree of Applied Physics - Unesp/Rio Claro - State of São
Paulo - Brazil
Laboratory of Electrical Measurements
email : vpms at rc.unesp.br or valdecimariano at bol.com.br
phone : ( 0XX19 ) 526 - 2237
*********************************************************************