with x calculated f(x)

Hallo can anyone help me? If I've a point x ,how to calculate just the specific value of f(x) in matlab?

Answer 1

[ahmed]

if you mean function with input (ex:R) and output (ex:X)

use this example :

function  [x] = cal(r)
% This is an example function.
% I have no idea what r or x are.
 x = r.*sin(r);

(X is the output) (cal is the function to be called) (R= is the input)