Re: Num. integration problem in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg53805] Re: Num. integration problem in Mathematica*From*: "Astanoff" <astanoff at yahoo.fr>*Date*: Fri, 28 Jan 2005 02:43:50 -0500 (EST)*References*: <ctahqm$apt$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Antonio Cardoso wrote: > Hello, I'm trying to solve this numerical integration in Mathematica: [...] in = s^0.5*BesselK[1,s^0.5/Ma]*(3/(4*Pi))*(Ma*m1/v^2)* yt^2*((x-1- aL)*(x-2*aQ)/(x*(x-aH)^2))*(((1+aL-x)^2-4*aL)*(1-4* aQ/x))^0.5*(1/y^2); Sum[NIntegrate[in,{y, y1, y1+0.1}],{y1, 0, 0.9, 0.1}] 23573.6