04-20-2014, 01:12 AM
(04-20-2014, 01:03 AM)Iceglade Wrote:(04-20-2014, 12:43 AM)snugglycreeper9 Wrote: Oh, you can be cheap and do the determinant of:
|m -n|
|1 1|
which is equal to m-(-n) or m+n... pretty cheap i guess.
I don't think you can calculate a determinant without addition/subtraction.
Which is why I ditched the vector rotation, as far as I know to calculate the coordinates after rotation you need to add / subtract sines and cosines