# complex trigonometric functions

• March 9th 2008, 06:03 PM
flaming
complex trigonometric functions

determine the inverse of the function

w = z*exp^z + exp^(2*z)

thanks
• March 9th 2008, 11:31 PM
mr fantastic
Quote:

Originally Posted by flaming

determine the inverse of the function

w = z*exp^z + exp^(2*z)

thanks

Consider:

The inverse of the function $w = z\, e^z$ requires using a special function called the Lambert W-function: $w^{-1}(z) = W(z)$.

What you want is even more complicated .....

Why do you want the inverse, anyway? Note: If you have to find the derivative of the inverse function for a particular value of z, this can be done without using an explicit rule for the inverse ......
• March 10th 2008, 05:58 AM
ThePerfectHacker
Maybe this function does not even have an inverse? Does it?