Cross Product

[John Colvin]

(06-23-2015 01:53 AM)rgallier Wrote:  I kept trying:
[-6 4 12] ENTER
[-0.3 0.4 0] ENTER
CROSS(2)

Why do some functions need the stack arguments and others don't. I know cross product is implied with two arguments. If you put in CROSS(2) the error message even shows:
CROSS([-6 4 12] , [-0.3 0.4 0]); this format works with some vectors in RPN Home!?!

I think that the answer is CROSS doesn't require a stack levels specifier if entered as a command (CROSS Enter) because it always takes two arguments.