A question regarding a hyperbolic geometric function

*To*: mathgroup at smc.vnet.net*Subject*: [mg86396] A question regarding a hyperbolic geometric function*From*: "Ali K. Ozdagli" <ozdagli at gmail.com>*Date*: Mon, 10 Mar 2008 02:04:45 -0500 (EST)

Hi, I am working with Mathematica in order to solve an ordinary differential equation with several boundary conditions. It turned out that the solution is Kummer confluent hypergeometric function, HyperGeometric1F1[a,b,x]. My problem is that for the values of a, b and x I am interested in, e.g. a=-26.9, b=-20.1, x=300000, the numerical accuracy of Mathematica is very poor. Can somebody suggest me a way to improve the mathematical accuracy of HyperGeometric1F1? I prefer a quick and easy way but also appreciate any hard way. Best, Ali -- Ali K. Ozdagli Ph.D. Student in Economics at University of Chicago

**Follow-Ups**:**Re: A question regarding a hyperbolic geometric function***From:*"Ali K. Ozdagli" <ozdagli@gmail.com>

**Re: A question regarding a hyperbolic geometric function***From:*"Ali K. Ozdagli" <ozdagli@gmail.com>