| Portability | non-portable |
|---|---|
| Stability | experimental |
| Maintainer | Edward Kmett <[email protected]> |
| Safe Haskell | Trustworthy |
Linear.Metric
Description
Free metric spaces
Documentation
class Additive f => Metric f whereSource
Free and sparse inner product/metric spaces.
Methods
dot :: Num a => f a -> f a -> aSource
Compute the inner product of two vectors or (equivalently)
convert a vector f a into a covector f a -> a.
>>>V2 1 2 `dot` V2 3 411
quadrance :: Num a => f a -> aSource
Compute the squared norm. The name quadrance arises from Norman J. Wildberger's rational trigonometry.
qd :: Num a => f a -> f a -> aSource
Compute the quadrance of the difference
distance :: Floating a => f a -> f a -> aSource
Compute the distance between two vectors in a metric space
norm :: Floating a => f a -> aSource
Compute the norm of a vector in a metric space
signorm :: Floating a => f a -> f aSource
Convert a non-zero vector to unit vector.