Is there an inverse function alternative to 'eval'?

Suppose I have an array of complex numbers z and I want to apply a user defined transformation to this array. For example:

    func = input('f(z)=','s');
    image = eval(func);

This is all well and good, and I can display the result of this transformation, no problem. But now, I wish to also calculate the inverse transformation of func (I am assuming that anything the user inputs is invertible). Is there a cousin function to eval that can do this for me? I have tried simply doing

    invimage = inv(image);

I am not sure what the output of this is, but I am certain it is not the inverse function.

Thank you for your help!

Answer 1

[Star Strider]

If you have the Symbolic Math Toolbox, consider the finverse function. I know of no others that would do it easily, although depending on what the function is, you might be able to do it by hand.

[Anthony Mottaz]

Thank you so much! I was able to utilize finverse to finagle a solution to my problem.

[Star Strider]

My pleasure!