Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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


Math Forum » Discussions » Math Topics » alt.algebra.help.independent

Topic: Fitting sigmoid curve with three points
Replies: 0  

Advanced Search

Back to Topic List Back to Topic List  
John

Posts: 1
Registered: 8/29/08
Fitting sigmoid curve with three points
Posted: Aug 29, 2008 12:58 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Hi,

There are three points on a plane (x1,y1), (x2,y2) and (x3,y3).

How to find m,n,k that (x1,y1), (x2,y2) and (x3,y3) satisfy

y1 = m*x1^n/(k^n+ x1^n)
y2 = m*x2^n/(k^n+ x2^n)
y3 = m*x3^n/(k^n+ x3^n)

Thanks



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

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.