If the size of vector is not too large or execution speed is not a critical consideration then you can use dynamic allocation. Something like this. vector 'a' contains the value returns by each call of myFun
a = [];
while 1
x = input('x: ');
y = input('y: ');
z = input('z: ');
a = [a myFun(x, y, z)];
if upper(input('Do you want to enter again? (Y/N)', 's')) == 'N'
break;
end
end
function a = myFun(x, y, z) % example
a = x + y + z;
end
