vector

Documentation

Index

• func AddBuf(v V, u V, b V)
• func Dot(v V, u V) float64
• func IsOrthogonal(v V, u V) bool
• func Magnitude(v V) float64
• func ScaleBuf(c float64, v V, b V)
• func SquaredMagnitude(v V) float64
• func SubBuf(v V, u V, b V)
• func UnitBuf(v V, b V)
• func Within(v V, u V) bool
• func WithinEpsilon(v V, u V, e epsilon.E) bool
• type D
• type V
  • func Add(v V, u V) V
  • func New(xs ...float64) *V
  • func Scale(c float64, v V) V
  • func Sub(v V, u V) V
  • func Unit(v V) V
  • func (v V) Dimension() D
  • func (v V) X(i D) float64

Functions

func AddBuf

func AddBuf(v V, u V, b V)

func Dot

func Dot(v V, u V) float64

func IsOrthogonal

func IsOrthogonal(v V, u V) bool

func Magnitude

func Magnitude(v V) float64

func ScaleBuf

func ScaleBuf(c float64, v V, b V)

func SquaredMagnitude

func SquaredMagnitude(v V) float64

func SubBuf

func SubBuf(v V, u V, b V)

func UnitBuf

func UnitBuf(v V, b V)

func Within

func Within(v V, u V) bool

func WithinEpsilon

func WithinEpsilon(v V, u V, e epsilon.E) bool

Types

type D

type D int

const (
	// AXIS_X is a common alias for the first dimension.
	AXIS_X D = iota

	// AXIS_Y is a common alias for the second dimension.
	AXIS_Y

	// AXIS_Z is a common alias for the third dimension.
	AXIS_Z

	// AXIS_W is a common alias for the fourth dimension.
	AXIS_W
)

type V

type V []float64

V is an n-length vector.

func Add

func Add(v V, u V) V

func New

func New(xs ...float64) *V

func Scale

func Scale(c float64, v V) V

func Sub

func Sub(v V, u V) V

func Unit

func Unit(v V) V

func (V) Dimension

func (v V) Dimension() D

Dimension returns the dimension of the vector.

func (V) X

func (v V) X(i D) float64