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Putting an If in my function

• To: mathgroup at smc.vnet.net
• Subject: [mg101039] Putting an If in my function
• From: Lobotomy <labbman at gmail.com>
• Date: Mon, 22 Jun 2009 04:21:53 -0400 (EDT)

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"

• Follow-Ups:
  • Re: Putting an If in my function
    • From: Leonid Shifrin <lshifr@gmail.com>