how to define the following function

How to define the following function in MATLAB

f(x) = 1      for 0<= x <= pi
f(x) = 1      for 0<= x <= pi

[Walter Roberson]

You seem to have the same entry twice ?

Answer 1

[Thorsten]

 if 0 <= x && x <= pi, y = 0; end

[Walter Roberson]

Or, vectorized:

y = zeros(size(x));
y(x >= 0 & x <= pi) = 1;