       Re: Solving this in mathematica?

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• Subject: [mg128069] Re: Solving this in mathematica?
• From: Scott Hemphill <hemphill at hemphills.net>
• Date: Thu, 13 Sep 2012 03:39:04 -0400 (EDT)
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```Leon <leon.he88 at gmail.com> writes:

[snip]

> and I am wondering if it is possible to solve the last line such that I have "r" as a function of "beta", satisfying
>
> Exp[Cbar - beta] Sum[(Pi^x) B[x, r], {x, 1, 1000}] = 1
>
> Because ultimately, I would need to integrate a function J[r] over "beta", so if I don't have "r" as a function of "beta", I don't know how to do the integration of J[r].

Since you can write

beta == Cbar + Log[Sum[...]]

why not do a change of variables and integrate over r instead?

Scott
--
Scott Hemphill	hemphill at alumni.caltech.edu
"This isn't flying.  This is falling, with style."  -- Buzz Lightyear

```

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