Re: Numerical Integration of Improper Integral

*To*: mathgroup at smc.vnet.net*Subject*: [mg123042] Re: Numerical Integration of Improper Integral*From*: "Dr. Wolfgang Hintze" <weh at snafu.de>*Date*: Mon, 21 Nov 2011 04:28:55 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <ja85ck$ikf$1@smc.vnet.net>

"Alex" <mammasis82 at hotmail.com> schrieb im Newsbeitrag news:ja85ck$ikf$1 at smc.vnet.net... > Hi, > > I have the following complicated integral willing to integrate > numerically since I am not aware of any analytical expression for it. > The integral is: > > [ math] \int ^{\infty }\frac{1}{t}\left(e^{\frac{\left(-t+2\sqrt{t}p > \text{Cos}[\phi -\text{$\phi $o}]\right)}{2 \sigma ^2}}\right)dt [ > /math]. > > Can anyone suggest a methodology of deriving the upper bound of the > limit of this integral for numerical evaluation purposes? > > Thanks for your time. > > BR, > > Alex > Could you please be so kind to translate your expression into Mathematica language? Regards, Wolfgang