How do you point the arms toward the mouse. Does it require Magnitude as well?

How do you point the arms toward the mouse. Does it require Magnitude as well?

Can you also tell me if there's a good website to understand the math needed for this besides Wikipedia, because wikipedia is very equation based which is confusing with most of it being explained in equations.

It not require Magnitude, there is no point in using it.

Make a localscript and get the mouse, and then use lookVector to point the arm to the mouse's position.

Hope this helps.