I am trying to program a custom function to make some simple math simpler.
Unfortunately this is my first swing at a custom function or VBA for that
matter. I would like to be able to pass 6 variables to a function and have it
do the following math:

CrossP(A1, A2, A3, B1, B2, B3)
CrossP = ((A2 * B3 - A3 * B2) ^ 2 + (A1 * B3 - A3 * B1) ^ 2 + (A1 * B2 - A2
- B1) ^ 2) ^ 0.5

Any thoughts?