MATLAB: What is the problem with the heaviside function

Question

fun =

    @(p,x)p(1)*heaviside(x-p(2))

Undefined function 'heaviside' for input arguments of type 'double'.

Answer 1

Your function works for me. Do you have the Symbolic Math Toolbox?

If you don’t substitute a call to this one for the heaviside call:

hvsd = @(x) [0.5*(x == 0) + (x > 0)];

I tested both, they give equivalent results.