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How to solve or approximate a first order differential equation ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg123207] How to solve or approximate a first order differential equation ?
  • From: Dino <dinodeblasio at gmail.com>
  • Date: Sat, 26 Nov 2011 05:09:09 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

Hello everyone,

I have this first order differential equation:

y'[t] = -A (y[t])^2 + B (C - y[t])

where A and B are unknown constants and C is known constant.
One condition is y[0]==0

A and B should be determined by fitting a list of {y[i],t[i]} values.

For this reason i would like to approximate my differential equation
with a function which I could use to fit the data and find A and B.

I don't know how to do this.
Any help is highly appreciated.

Thanks,



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