Re: FindRoot and Bose-Einstein distribution

*To*: mathgroup at smc.vnet.net*Subject*: [mg82869] Re: FindRoot and Bose-Einstein distribution*From*: P_ter <peter_van_summeren at yahoo.co.uk>*Date*: Thu, 1 Nov 2007 05:26:03 -0500 (EST)

Hello, I checked the sums for stability. Seems ok up until i=100000. Also: I did Newton-Raphson to solve this problem, into quite a few decimals. But, I could not do it with Mathematica's FindRoot. The two values mm and mn result in a first(!!) order approximation to p and q given in my mail. And reverse. It is that I do not understand why such a beast as FindRoot comes with so nasty messages. Of course I accept that finding a root has a kind of art in it. But calculating myself a first order approximation in two simple lines of code with only Log[] in it and that FindRoot can not find the roots, still urges me to ask: what did I do wrong? with friendly greetings, P_ter