How to put max function in symbolic function

I want to make a symbolic function where

f(x)=max(0,x)={0 x<0

x x≥0 }

how to do it?

syms x
f = max(0,x)

It gives me an error: Input arguments must be convertible to floating-point numbers.

Answer 1

[Birdman]

Why would you try to name it as max? Simply, piecewise function in Symbolic toolbox would help you:

syms x
f(x)=piecewise(x<0,0,x>=0,x);

ıf you want to plot for specific inputs to test the function

x=-2:0.1:2;%random input
plot(x,f(x))

[Mohamed Gaballah]

Isn't there an equivilant in Matlab 2016a , as it gives me "Undefined function or variable 'piecewise'."