Re: Replace certain variable

*To*: mathgroup at smc.vnet.net*Subject*: [mg74844] Re: [mg74821] Replace certain variable*From*: Sseziwa Mukasa <mukasa at jeol.com>*Date*: Sat, 7 Apr 2007 04:09:23 -0400 (EDT)*References*: <200704060825.EAA09293@smc.vnet.net>

On Apr 6, 2007, at 4:25 AM, KFUPM wrote: > Dear Group > > If i have a term like : F[w]*Exp[I*w*t] where F[w] is an arbitrary > function, and i want to replace w by x+ s*a only in the exponent not > in F[w], i wonder what is the quickest and easiest way to do it > provided that i have so many similar terms. I would change all the F[w] to something else, then change w, then restore F[w] eg: F[w] Exp[I w t]/.F[w]->c/.w->x+s a/.c->F[w] Regards, Ssezi

**References**:**Replace certain variable***From:*"KFUPM" <hussain.alqahtani@gmail.com>