How can I input values through variables in a multi-variable equation

I have an equation: f(t,w) = w - t^(2) +1

1. I want to have user input the equation in terms of w and t

2. I have 5 values of each w(i) and t(i), I want to be able to put these values in the equation f(t,w) and obtain the result in a variable, lets say A, i.e. A=f(t,w) meaning that A = w - t^(2) + 1

_ * Problem is that I am confused about the syntax and script code that should be able to do this.*_

Answer 1

[Ahmet Cecen]

This should help: Anonymous Functions