Re: Parameter optimizatrion in modified diffusion equation

• To: mathgroup at smc.vnet.net
• Subject: [mg120973] Re: Parameter optimizatrion in modified diffusion equation
• From: "Scot T. Martin" <smartin at seas.harvard.edu>
• Date: Fri, 19 Aug 2011 06:35:54 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com

```Yes, I have done the normal diffusion problem numerically, and I have the code, but I think you're looking to solve it yourself, right? Read up on NDSolve for partial differential equations in the Mathematica documentation.
________________________________________
From: Brampftl [alexandre.abreu at physik.uni-augsburg.de]
Sent: Thursday, August 18, 2011 03:22
To: mathgroup at smc.vnet.net
Subject: [mg120973] Parameter optimizatrion in modified diffusion equation

Hello!

I am new to Mathematica and am trying to figure out if it can solve my problem:

I have a modified Diffusion equation:
dc/dt == D d^2c/dx^2 - r c exp(-n t)

c: concentration
D: Diffusion constant
r: reaction rate
n: time constant

What i need to do is to solve the equation and find a set of parameters to fit my experimental results.

Has anybody an idea if that's possible in mathematica and if so how to implement it?

Thanks!

Alex

```

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