how to replace...?
- To: mathgroup@smc.vnet.net
- Subject: [mg12399] how to replace...?
- From: fyaitsah@gsbux1.uchicago.edu (Yacine Ait-Sahalia)
- Date: Thu, 14 May 1998 11:15:09 -0400
- Organization: University of Chicago
Hi,
What should I do to systematically replace the limit
(f[y]-f[x])/(y-x) /. y->x
by f'[x], no matter what the function f is?
Thanks!