Defining piecewise function in matlab

[tmpr]

How would you write piecewise functions in MATLAB that can take vector inputs?

Here's a function that I'm trying to write.

function y=g(x)
if x==0
    y=1;
else
y=sin(x)./x;
end

If I call g([0,pi/2]), I want it to return [0,2/pi], but what I get instead is [NaN,2/pi]. I'm guessing when I write x==0, MATLAB is comparing the entire input to 0.

 

[matematikawan]

Try this to eliminate the problem at x=0.


g = @(x) 1.*(x==0) + (x~=0).*sin(x)./(x+(x==0));
t=[0 pi/2];
g(t)