How can I input a matrix into a matlab function?

Basically I was asked to write a program that takes in a vector (in its x y z components) and check whether the length of that vector would be inside, touching or on the outside of the sphere of radius 1. If its inside or touching the rim of the sphere, then the function would output "1" if it lies on the outside it would output "0".

Here is my code

function c = inside_sphere(x,y,z)

vmag = sqrt( x^2 + y^2 + z^2);

if vmag <= 1

      fprintf('1 \n');

elseif vmag > 1

      fprintf('0 \n');

end

If I run the function by inputing statements like this

"inside_sphere(0.3,0.4,0.54)"

Answer 1

[Walter Roberson]

When they say "output" they mean the return value of the function, not displayed to the screen.