Copyright	(C) 2012-2015 Edward Kmett
License	BSD-style (see the file LICENSE)
Maintainer	Edward Kmett <ekmett@gmail.com>
Stability	experimental
Portability	non-portable
Safe Haskell	Trustworthy
Language	Haskell2010

Linear.V2

Description

2-D Vectors

Synopsis

data V2 a = V2 !a !a
class R1 t where
- _x :: Lens' (t a) a
class R1 t => R2 t where
- _y :: Lens' (t a) a
- _xy :: Lens' (t a) (V2 a)
_yx :: R2 t => Lens' (t a) (V2 a)
ex :: R1 t => E t
ey :: R2 t => E t
perp :: Num a => V2 a -> V2 a
angle :: Floating a => a -> V2 a
unangle :: (Floating a, Ord a) => V2 a -> a
crossZ :: Num a => V2 a -> V2 a -> a

Documentation

data V2 a Source #

A 2-dimensional vector

>>> pure 1 :: V2 Int
V2 1 1

>>> V2 1 2 + V2 3 4
V2 4 6

>>> V2 1 2 * V2 3 4
V2 3 8

>>> sum (V2 1 2)
3

Constructors

V2 !a !a

Instances

Monad V2 Source #
Instance details Defined in Linear.V2 Methods (>>=) :: V2 a -> (a -> V2 b) -> V2 b # (>>) :: V2 a -> V2 b -> V2 b # return :: a -> V2 a # fail :: String -> V2 a #
Functor V2 Source #
Instance details Defined in Linear.V2 Methods fmap :: (a -> b) -> V2 a -> V2 b # (<$) :: a -> V2 b -> V2 a #
MonadFix V2 Source #
Instance details Defined in Linear.V2 Methods mfix :: (a -> V2 a) -> V2 a #
Applicative V2 Source #
Instance details Defined in Linear.V2 Methods pure :: a -> V2 a # (<>) :: V2 (a -> b) -> V2 a -> V2 b # liftA2 :: (a -> b -> c) -> V2 a -> V2 b -> V2 c # (>) :: V2 a -> V2 b -> V2 b # (<*) :: V2 a -> V2 b -> V2 a #
Foldable V2 Source #
Instance details Defined in Linear.V2 Methods fold :: Monoid m => V2 m -> m # foldMap :: Monoid m => (a -> m) -> V2 a -> m # foldr :: (a -> b -> b) -> b -> V2 a -> b # foldr' :: (a -> b -> b) -> b -> V2 a -> b # foldl :: (b -> a -> b) -> b -> V2 a -> b # foldl' :: (b -> a -> b) -> b -> V2 a -> b # foldr1 :: (a -> a -> a) -> V2 a -> a # foldl1 :: (a -> a -> a) -> V2 a -> a # toList :: V2 a -> [a] # null :: V2 a -> Bool # length :: V2 a -> Int # elem :: Eq a => a -> V2 a -> Bool # maximum :: Ord a => V2 a -> a # minimum :: Ord a => V2 a -> a # sum :: Num a => V2 a -> a # product :: Num a => V2 a -> a #
Traversable V2 Source #
Instance details Defined in Linear.V2 Methods traverse :: Applicative f => (a -> f b) -> V2 a -> f (V2 b) # sequenceA :: Applicative f => V2 (f a) -> f (V2 a) # mapM :: Monad m => (a -> m b) -> V2 a -> m (V2 b) # sequence :: Monad m => V2 (m a) -> m (V2 a) #
Distributive V2 Source #
Instance details Defined in Linear.V2 Methods distribute :: Functor f => f (V2 a) -> V2 (f a) # collect :: Functor f => (a -> V2 b) -> f a -> V2 (f b) # distributeM :: Monad m => m (V2 a) -> V2 (m a) # collectM :: Monad m => (a -> V2 b) -> m a -> V2 (m b) #
Representable V2 Source #
Instance details Defined in Linear.V2 Associated Types type Rep V2 :: Type # Methods tabulate :: (Rep V2 -> a) -> V2 a # index :: V2 a -> Rep V2 -> a #
Eq1 V2 Source #
Instance details Defined in Linear.V2 Methods liftEq :: (a -> b -> Bool) -> V2 a -> V2 b -> Bool #
Ord1 V2 Source #
Instance details Defined in Linear.V2 Methods liftCompare :: (a -> b -> Ordering) -> V2 a -> V2 b -> Ordering #
Read1 V2 Source #
Instance details Defined in Linear.V2 Methods liftReadsPrec :: (Int -> ReadS a) -> ReadS [a] -> Int -> ReadS (V2 a) # liftReadList :: (Int -> ReadS a) -> ReadS [a] -> ReadS [V2 a] # liftReadPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec (V2 a) # liftReadListPrec :: ReadPrec a -> ReadPrec [a] -> ReadPrec [V2 a] #
Show1 V2 Source #
Instance details Defined in Linear.V2 Methods liftShowsPrec :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> V2 a -> ShowS # liftShowList :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> [V2 a] -> ShowS #
MonadZip V2 Source #
Instance details Defined in Linear.V2 Methods mzip :: V2 a -> V2 b -> V2 (a, b) # mzipWith :: (a -> b -> c) -> V2 a -> V2 b -> V2 c # munzip :: V2 (a, b) -> (V2 a, V2 b) #
Serial1 V2 Source #
Instance details Defined in Linear.V2 Methods serializeWith :: MonadPut m => (a -> m ()) -> V2 a -> m () # deserializeWith :: MonadGet m => m a -> m (V2 a) #
Hashable1 V2 Source #
Instance details Defined in Linear.V2 Methods liftHashWithSalt :: (Int -> a -> Int) -> Int -> V2 a -> Int #
Apply V2 Source #
Instance details Defined in Linear.V2 Methods (<.>) :: V2 (a -> b) -> V2 a -> V2 b # (.>) :: V2 a -> V2 b -> V2 b # (<.) :: V2 a -> V2 b -> V2 a # liftF2 :: (a -> b -> c) -> V2 a -> V2 b -> V2 c #
Traversable1 V2 Source #
Instance details Defined in Linear.V2 Methods traverse1 :: Apply f => (a -> f b) -> V2 a -> f (V2 b) # sequence1 :: Apply f => V2 (f b) -> f (V2 b) #
Foldable1 V2 Source #
Instance details Defined in Linear.V2 Methods fold1 :: Semigroup m => V2 m -> m # foldMap1 :: Semigroup m => (a -> m) -> V2 a -> m # toNonEmpty :: V2 a -> NonEmpty a #
Bind V2 Source #
Instance details Defined in Linear.V2 Methods (>>-) :: V2 a -> (a -> V2 b) -> V2 b # join :: V2 (V2 a) -> V2 a #
Additive V2 Source #
Instance details Defined in Linear.V2 Methods zero :: Num a => V2 a Source # (^+^) :: Num a => V2 a -> V2 a -> V2 a Source # (^-^) :: Num a => V2 a -> V2 a -> V2 a Source # lerp :: Num a => a -> V2 a -> V2 a -> V2 a Source # liftU2 :: (a -> a -> a) -> V2 a -> V2 a -> V2 a Source # liftI2 :: (a -> b -> c) -> V2 a -> V2 b -> V2 c Source #
Metric V2 Source #
Instance details Defined in Linear.V2 Methods dot :: Num a => V2 a -> V2 a -> a Source # quadrance :: Num a => V2 a -> a Source # qd :: Num a => V2 a -> V2 a -> a Source # distance :: Floating a => V2 a -> V2 a -> a Source # norm :: Floating a => V2 a -> a Source # signorm :: Floating a => V2 a -> V2 a Source #
Finite V2 Source #
Instance details Defined in Linear.V2 Associated Types type Size V2 :: Nat Source # Methods toV :: V2 a -> V (Size V2) a Source # fromV :: V (Size V2) a -> V2 a Source #
R1 V2 Source #
Instance details Defined in Linear.V2 Methods _x :: Lens' (V2 a) a Source #
R2 V2 Source #
Instance details Defined in Linear.V2 Methods _y :: Lens' (V2 a) a Source # _xy :: Lens' (V2 a) (V2 a) Source #
Trace V2 Source #
Instance details Defined in Linear.Trace Methods trace :: Num a => V2 (V2 a) -> a Source # diagonal :: V2 (V2 a) -> V2 a Source #
Affine V2 Source #
Instance details Defined in Linear.Affine Associated Types type Diff V2 :: Type -> Type Source # Methods (.-.) :: Num a => V2 a -> V2 a -> Diff V2 a Source # (.+^) :: Num a => V2 a -> Diff V2 a -> V2 a Source # (.-^) :: Num a => V2 a -> Diff V2 a -> V2 a Source #
Unbox a => Vector Vector (V2 a) Source #
Instance details Defined in Linear.V2 Methods basicUnsafeFreeze :: PrimMonad m => Mutable Vector (PrimState m) (V2 a) -> m (Vector (V2 a)) # basicUnsafeThaw :: PrimMonad m => Vector (V2 a) -> m (Mutable Vector (PrimState m) (V2 a)) # basicLength :: Vector (V2 a) -> Int # basicUnsafeSlice :: Int -> Int -> Vector (V2 a) -> Vector (V2 a) # basicUnsafeIndexM :: Monad m => Vector (V2 a) -> Int -> m (V2 a) # basicUnsafeCopy :: PrimMonad m => Mutable Vector (PrimState m) (V2 a) -> Vector (V2 a) -> m () # elemseq :: Vector (V2 a) -> V2 a -> b -> b #
Unbox a => MVector MVector (V2 a) Source #
Instance details Defined in Linear.V2 Methods basicLength :: MVector s (V2 a) -> Int # basicUnsafeSlice :: Int -> Int -> MVector s (V2 a) -> MVector s (V2 a) # basicOverlaps :: MVector s (V2 a) -> MVector s (V2 a) -> Bool # basicUnsafeNew :: PrimMonad m => Int -> m (MVector (PrimState m) (V2 a)) # basicInitialize :: PrimMonad m => MVector (PrimState m) (V2 a) -> m () # basicUnsafeReplicate :: PrimMonad m => Int -> V2 a -> m (MVector (PrimState m) (V2 a)) # basicUnsafeRead :: PrimMonad m => MVector (PrimState m) (V2 a) -> Int -> m (V2 a) # basicUnsafeWrite :: PrimMonad m => MVector (PrimState m) (V2 a) -> Int -> V2 a -> m () # basicClear :: PrimMonad m => MVector (PrimState m) (V2 a) -> m () # basicSet :: PrimMonad m => MVector (PrimState m) (V2 a) -> V2 a -> m () # basicUnsafeCopy :: PrimMonad m => MVector (PrimState m) (V2 a) -> MVector (PrimState m) (V2 a) -> m () # basicUnsafeMove :: PrimMonad m => MVector (PrimState m) (V2 a) -> MVector (PrimState m) (V2 a) -> m () # basicUnsafeGrow :: PrimMonad m => MVector (PrimState m) (V2 a) -> Int -> m (MVector (PrimState m) (V2 a)) #
Num r => Coalgebra r (E V2) Source #
Instance details Defined in Linear.Algebra Methods comult :: (E V2 -> r) -> E V2 -> E V2 -> r Source # counital :: (E V2 -> r) -> r Source #
Bounded a => Bounded (V2 a) Source #
Instance details Defined in Linear.V2 Methods minBound :: V2 a # maxBound :: V2 a #
Eq a => Eq (V2 a) Source #
Instance details Defined in Linear.V2 Methods (==) :: V2 a -> V2 a -> Bool # (/=) :: V2 a -> V2 a -> Bool #
Floating a => Floating (V2 a) Source #
Instance details Defined in Linear.V2 Methods pi :: V2 a # exp :: V2 a -> V2 a # log :: V2 a -> V2 a # sqrt :: V2 a -> V2 a # (**) :: V2 a -> V2 a -> V2 a # logBase :: V2 a -> V2 a -> V2 a # sin :: V2 a -> V2 a # cos :: V2 a -> V2 a # tan :: V2 a -> V2 a # asin :: V2 a -> V2 a # acos :: V2 a -> V2 a # atan :: V2 a -> V2 a # sinh :: V2 a -> V2 a # cosh :: V2 a -> V2 a # tanh :: V2 a -> V2 a # asinh :: V2 a -> V2 a # acosh :: V2 a -> V2 a # atanh :: V2 a -> V2 a # log1p :: V2 a -> V2 a # expm1 :: V2 a -> V2 a # log1pexp :: V2 a -> V2 a # log1mexp :: V2 a -> V2 a #
Fractional a => Fractional (V2 a) Source #
Instance details Defined in Linear.V2 Methods (/) :: V2 a -> V2 a -> V2 a # recip :: V2 a -> V2 a # fromRational :: Rational -> V2 a #
Data a => Data (V2 a) Source #
Instance details Defined in Linear.V2 Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> V2 a -> c (V2 a) # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (V2 a) # toConstr :: V2 a -> Constr # dataTypeOf :: V2 a -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (V2 a)) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (V2 a)) # gmapT :: (forall b. Data b => b -> b) -> V2 a -> V2 a # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> V2 a -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> V2 a -> r # gmapQ :: (forall d. Data d => d -> u) -> V2 a -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> V2 a -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> V2 a -> m (V2 a) # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> V2 a -> m (V2 a) # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> V2 a -> m (V2 a) #
Num a => Num (V2 a) Source #
Instance details Defined in Linear.V2 Methods (+) :: V2 a -> V2 a -> V2 a # (-) :: V2 a -> V2 a -> V2 a # (*) :: V2 a -> V2 a -> V2 a # negate :: V2 a -> V2 a # abs :: V2 a -> V2 a # signum :: V2 a -> V2 a # fromInteger :: Integer -> V2 a #
Ord a => Ord (V2 a) Source #
Instance details Defined in Linear.V2 Methods compare :: V2 a -> V2 a -> Ordering # (<) :: V2 a -> V2 a -> Bool # (<=) :: V2 a -> V2 a -> Bool # (>) :: V2 a -> V2 a -> Bool # (>=) :: V2 a -> V2 a -> Bool # max :: V2 a -> V2 a -> V2 a # min :: V2 a -> V2 a -> V2 a #
Read a => Read (V2 a) Source #
Instance details Defined in Linear.V2 Methods readsPrec :: Int -> ReadS (V2 a) # readList :: ReadS [V2 a] # readPrec :: ReadPrec (V2 a) # readListPrec :: ReadPrec [V2 a] #
Show a => Show (V2 a) Source #
Instance details Defined in Linear.V2 Methods showsPrec :: Int -> V2 a -> ShowS # show :: V2 a -> String # showList :: [V2 a] -> ShowS #
Ix a => Ix (V2 a) Source #
Instance details Defined in Linear.V2 Methods range :: (V2 a, V2 a) -> [V2 a] # index :: (V2 a, V2 a) -> V2 a -> Int # unsafeIndex :: (V2 a, V2 a) -> V2 a -> Int inRange :: (V2 a, V2 a) -> V2 a -> Bool # rangeSize :: (V2 a, V2 a) -> Int # unsafeRangeSize :: (V2 a, V2 a) -> Int
Generic (V2 a) Source #
Instance details Defined in Linear.V2 Associated Types type Rep (V2 a) :: Type -> Type # Methods from :: V2 a -> Rep (V2 a) x # to :: Rep (V2 a) x -> V2 a #
Semigroup a => Semigroup (V2 a) Source #
Instance details Defined in Linear.V2 Methods (<>) :: V2 a -> V2 a -> V2 a # sconcat :: NonEmpty (V2 a) -> V2 a # stimes :: Integral b => b -> V2 a -> V2 a #
Monoid a => Monoid (V2 a) Source #
Instance details Defined in Linear.V2 Methods mempty :: V2 a # mappend :: V2 a -> V2 a -> V2 a # mconcat :: [V2 a] -> V2 a #
Lift a => Lift (V2 a) Source #
Instance details Defined in Linear.V2 Methods lift :: V2 a -> Q Exp #
Storable a => Storable (V2 a) Source #
Instance details Defined in Linear.V2 Methods sizeOf :: V2 a -> Int # alignment :: V2 a -> Int # peekElemOff :: Ptr (V2 a) -> Int -> IO (V2 a) # pokeElemOff :: Ptr (V2 a) -> Int -> V2 a -> IO () # peekByteOff :: Ptr b -> Int -> IO (V2 a) # pokeByteOff :: Ptr b -> Int -> V2 a -> IO () # peek :: Ptr (V2 a) -> IO (V2 a) # poke :: Ptr (V2 a) -> V2 a -> IO () #
Binary a => Binary (V2 a) Source #
Instance details Defined in Linear.V2 Methods put :: V2 a -> Put # get :: Get (V2 a) # putList :: [V2 a] -> Put #
Serial a => Serial (V2 a) Source #
Instance details Defined in Linear.V2 Methods serialize :: MonadPut m => V2 a -> m () # deserialize :: MonadGet m => m (V2 a) #
Serialize a => Serialize (V2 a) Source #
Instance details Defined in Linear.V2 Methods put :: Putter (V2 a) # get :: Get (V2 a) #
NFData a => NFData (V2 a) Source #
Instance details Defined in Linear.V2 Methods rnf :: V2 a -> () #
Hashable a => Hashable (V2 a) Source #
Instance details Defined in Linear.V2 Methods hashWithSalt :: Int -> V2 a -> Int # hash :: V2 a -> Int #
Unbox a => Unbox (V2 a) Source #
Instance details Defined in Linear.V2
Ixed (V2 a) Source #
Instance details Defined in Linear.V2 Methods ix :: Index (V2 a) -> Traversal' (V2 a) (IxValue (V2 a)) #
Random a => Random (V2 a) Source #
Instance details Defined in Linear.V2 Methods randomR :: RandomGen g => (V2 a, V2 a) -> g -> (V2 a, g) # random :: RandomGen g => g -> (V2 a, g) # randomRs :: RandomGen g => (V2 a, V2 a) -> g -> [V2 a] # randoms :: RandomGen g => g -> [V2 a] #
Epsilon a => Epsilon (V2 a) Source #
Instance details Defined in Linear.V2 Methods nearZero :: V2 a -> Bool Source #
Generic1 V2 Source #
Instance details Defined in Linear.V2 Associated Types type Rep1 V2 :: k -> Type # Methods from1 :: V2 a -> Rep1 V2 a # to1 :: Rep1 V2 a -> V2 a #
FunctorWithIndex (E V2) V2 Source #
Instance details Defined in Linear.V2 Methods imap :: (E V2 -> a -> b) -> V2 a -> V2 b # imapped :: IndexedSetter (E V2) (V2 a) (V2 b) a b #
FoldableWithIndex (E V2) V2 Source #
Instance details Defined in Linear.V2 Methods ifoldMap :: Monoid m => (E V2 -> a -> m) -> V2 a -> m # ifolded :: IndexedFold (E V2) (V2 a) a # ifoldr :: (E V2 -> a -> b -> b) -> b -> V2 a -> b # ifoldl :: (E V2 -> b -> a -> b) -> b -> V2 a -> b # ifoldr' :: (E V2 -> a -> b -> b) -> b -> V2 a -> b # ifoldl' :: (E V2 -> b -> a -> b) -> b -> V2 a -> b #
TraversableWithIndex (E V2) V2 Source #
Instance details Defined in Linear.V2 Methods itraverse :: Applicative f => (E V2 -> a -> f b) -> V2 a -> f (V2 b) # itraversed :: IndexedTraversal (E V2) (V2 a) (V2 b) a b #
Each (V2 a) (V2 b) a b Source #
Instance details Defined in Linear.V2 Methods each :: Traversal (V2 a) (V2 b) a b #
Field1 (V2 a) (V2 a) a a Source #
Instance details Defined in Linear.V2 Methods _1 :: Lens (V2 a) (V2 a) a a #
Field2 (V2 a) (V2 a) a a Source #
Instance details Defined in Linear.V2 Methods _2 :: Lens (V2 a) (V2 a) a a #
type Rep V2 Source #
Instance details Defined in Linear.V2 type Rep V2 = E V2
type Size V2 Source #
Instance details Defined in Linear.V2 type Size V2 = 2
type Diff V2 Source #
Instance details Defined in Linear.Affine type Diff V2 = V2
data MVector s (V2 a) Source #
Instance details Defined in Linear.V2 data MVector s (V2 a) = MV_V2 !Int !(MVector s a)
type Rep (V2 a) Source #
Instance details Defined in Linear.V2 type Rep (V2 a) = D1 (MetaData "V2" "Linear.V2" "linear-1.21.3-4VKk0ANeJOgJLRUVoSPnwE" False) (C1 (MetaCons "V2" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 a) :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 a)))
data Vector (V2 a) Source #
Instance details Defined in Linear.V2 data Vector (V2 a) = V_V2 !Int !(Vector a)
type Index (V2 a) Source #
Instance details Defined in Linear.V2 type Index (V2 a) = E V2
type IxValue (V2 a) Source #
Instance details Defined in Linear.V2 type IxValue (V2 a) = a
type Rep1 V2 Source #
Instance details Defined in Linear.V2 type Rep1 V2 = D1 (MetaData "V2" "Linear.V2" "linear-1.21.3-4VKk0ANeJOgJLRUVoSPnwE" False) (C1 (MetaCons "V2" PrefixI False) (S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) Par1 :*: S1 (MetaSel (Nothing :: Maybe Symbol) NoSourceUnpackedness SourceStrict DecidedStrict) Par1))

class R1 t where Source #

A space that has at least 1 basis vector _x.

Methods

_x :: Lens' (t a) a Source #

>>> V1 2 ^._x
2

>>> V1 2 & _x .~ 3
V1 3

Instances

R1 Identity Source #
Instance details Defined in Linear.V1 Methods _x :: Lens' (Identity a) a Source #
R1 V1 Source #
Instance details Defined in Linear.V1 Methods _x :: Lens' (V1 a) a Source #
R1 V2 Source #
Instance details Defined in Linear.V2 Methods _x :: Lens' (V2 a) a Source #
R1 V3 Source #
Instance details Defined in Linear.V3 Methods _x :: Lens' (V3 a) a Source #
R1 V4 Source #
Instance details Defined in Linear.V4 Methods _x :: Lens' (V4 a) a Source #
R1 Quaternion Source #
Instance details Defined in Linear.Quaternion Methods _x :: Lens' (Quaternion a) a Source #
R1 f => R1 (Point f) Source #
Instance details Defined in Linear.Affine Methods _x :: Lens' (Point f a) a Source #

class R1 t => R2 t where Source #

A space that distinguishes 2 orthogonal basis vectors _x and _y, but may have more.

Minimal complete definition

_xy

Methods

_y :: Lens' (t a) a Source #

>>> V2 1 2 ^._y
2

>>> V2 1 2 & _y .~ 3
V2 1 3

_xy :: Lens' (t a) (V2 a) Source #

Instances

R2 V2 Source #
Instance details Defined in Linear.V2 Methods _y :: Lens' (V2 a) a Source # _xy :: Lens' (V2 a) (V2 a) Source #
R2 V3 Source #
Instance details Defined in Linear.V3 Methods _y :: Lens' (V3 a) a Source # _xy :: Lens' (V3 a) (V2 a) Source #
R2 V4 Source #
Instance details Defined in Linear.V4 Methods _y :: Lens' (V4 a) a Source # _xy :: Lens' (V4 a) (V2 a) Source #
R2 Quaternion Source #
Instance details Defined in Linear.Quaternion Methods _y :: Lens' (Quaternion a) a Source # _xy :: Lens' (Quaternion a) (V2 a) Source #
R2 f => R2 (Point f) Source #
Instance details Defined in Linear.Affine Methods _y :: Lens' (Point f a) a Source # _xy :: Lens' (Point f a) (V2 a) Source #

_yx :: R2 t => Lens' (t a) (V2 a) Source #

>>> V2 1 2 ^. _yx
V2 2 1

ex :: R1 t => E t Source #

ey :: R2 t => E t Source #

perp :: Num a => V2 a -> V2 a Source #

the counter-clockwise perpendicular vector

>>> perp $ V2 10 20
V2 (-20) 10

angle :: Floating a => a -> V2 a Source #

unangle :: (Floating a, Ord a) => V2 a -> a Source #

crossZ :: Num a => V2 a -> V2 a -> a Source #

The Z-component of the cross product of two vectors in the XY-plane.

>>> crossZ (V2 1 0) (V2 0 1)
1