Portability  portable 

Stability  provisional 
Maintainer  Edward Kmett <ekmett@gmail.com> 
Safe Haskell  SafeInferred 
Testing for values near zero
Documentation
class Num a => Epsilon a whereSource
Provides a fairly subjective test to see if a quantity is near zero.
Epsilon Double 

Epsilon Float 

(Num (V2 a), Epsilon a) => Epsilon (V2 a)  
(Num (V3 a), Epsilon a) => Epsilon (V3 a)  
(Num (V4 a), Epsilon a) => Epsilon (V4 a)  
(Num (Plucker a), Epsilon a) => Epsilon (Plucker a)  
(Num (Quaternion a), RealFloat a, Epsilon a) => Epsilon (Quaternion a) 