If I add RealFloat, there will be runtime exceptions on most members of that class but atan2 would work. Another way would to make an Arctan2 typeclass with only an arctan2 function.
My current workaround is
atan2' :: Floating a => a -> a -> a
atan2' y x = 2 * atan (y / (sqrt(x*x + y*y + 1e-15) + x) )
ghorn
commented
10 years ago
If I add RealFloat, there will be runtime exceptions on most members of that class but
atan2would work. Another way would to make anArctan2typeclass with only anarctan2function.My current workaround is