Magnitude of difference from one vector (number) to another

Hi,

I have defined two vectors: X = -135.89 Y = -84.96066717

I want to determine how far away Y is compared to X (i.e. the return answer should be close to 50).

Can someone please help?

[KSSV]

Your X and Y are not vectors, they are scalars. You can get what you want using:

    d = abs(abs(X)-abs(Y))