The Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.


Math Forum » Discussions » Inactive » comp.soft-sys.math.mathematica

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: How to solve or approximate a first order differential equation ?
Replies: 5   Last Post: Nov 29, 2011 6:30 AM

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
dinodeblasio@gmail.com

Posts: 23
Registered: 10/14/07
How to solve or approximate a first order differential equation ?
Posted: Nov 26, 2011 4:39 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

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,

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.