Re: Putting an If in my function
- To: mathgroup at smc.vnet.net
- Subject: [mg101063] Re: Putting an If in my function
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Tue, 23 Jun 2009 07:04:27 -0400 (EDT)
- References: <h1neun$8rk$1@smc.vnet.net>
Hi,
Function[{a, g, f, x, d, w},
If[g == w, d + a*f*x,
d (1 + (E^g - E^w)/f)^(f x) + (
a (-1 + (1 + (E^g - E^w)/f)^(f x)) f)/(E^g - E^w)]]
?
Regards
Jens
Lobotomy wrote:
> Hi, this is my function
>
> #5 (1 + ((E^#2 - 1) - (E^#6 -
> 1))/#3)^(#3*#4) + (#1*((1 + (((E^#2 - 1) - (E^#6 -
> 1))/#3))^(#3*#4) -
> 1))/(((E^#2 - 1) - (E^#6 - 1))/#3) &[a, g, f, x, d, w]
>
>
> in the case when w==g the denominator equals zero.
>
> in this case i would like to rewrite the formula above to the much
> simpler
> d+a*n. How is this done? I've tried
>
> If[w == g, % = d + a*n], but this is not working. Another thing is
> where to put the "If"
>