Data.Radian

Documentation

toRadians :: (Floating a, Floating b) => Iso a b a b

An isomorphism between radians and degrees.

>>> toRadians # (180 :: Double)
3.141592653589793

>>> toRadians # (90 :: Double)
1.5707963267948966

>>> toRadians # (359 :: Double)
6.265732014659643

>>> toRadians # (360 :: Double)
6.283185307179586

>>> toRadians # (3600 :: Double)
62.83185307179586

>>> toRadians # (1 :: Double)
1.7453292519943295e-2

>>> toRadians # ((-180) :: Double)
-3.141592653589793

fromRadians :: (Floating a, Floating b) => Iso a b a b

An isomorphism between degrees and radians.

>>> fromRadians # (0 :: Double)
0.0

>>> fromRadians # (1 :: Double)
57.29577951308232

>>> fromRadians # ((-1) :: Double)
-57.29577951308232

>>> fromRadians # (3 :: Double)
171.88733853924697