MATLAB: How to solve a system of equations in matlab

Question

hello,

How do I solve this system of equations in matlab for F(-2:2) ?

f(x)= x+2 if x<=0

-x+2 if x>0

Apparently you can't use an if for this solution, but I don't really understand why either.

Thanks in advance

Answer 1

Try this

f = @(x) (x+2).*(x<=0) + (-x+2).*(x>0);

(x<=0) returns 1's where it's true and 0 where it's false. Similarly for (x>0)