Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'Want Derivative in Specific Form' topicStudent Support Forum > General > "Want Derivative in Specific Form"

< Previous CommentHelp | Reply To Comment | Reply To Topic
Author Comment/Response
Henry Lamb
09/28/04 7:16pm

Try this.

f = 1/(1 + Exp[-z])
Eliminate[{P == f, dP == D[f, z]}, z]

Both terms in the result are equivalent. You can show this by solving for dP.

Solve[List @@ %, dP]




URL: ,

Subject (listing for 'Want Derivative in Specific Form')
Author Date Posted
Want Derivative in Specific Form Michelle 09/22/04 3:45pm
Re: Want Derivative in Specific Form Henry Lamb 09/28/04 7:16pm
< Previous CommentHelp | Reply To Comment | Reply To Topic