i'm trying to create an if loop so that I can run my program starting with x=1 and increasing by 1 to x =3.

The conditions are as follows:

 if x=2, f=Inf
 if x=>2, f=NaN
 otherwise run the function, f=log(5/2-x)

x2 = 0;

if x2 = 2;
    f = Inf
elseif x2 => 2;
    f = NaN
else
    f = log(5/2-x2)
    x2 = x2+1;
end

What am I doing wrong?