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 *********************************************************************