r3

func (Vector) Abs ¶

func (v Vector) Abs() Vector

Abs returns the vector with nonnegative components.

func (Vector) Add ¶

func (v Vector) Add(ov Vector) Vector

Add returns the standard vector sum of v and ov.

func (Vector) Angle ¶

func (v Vector) Angle(ov Vector) s1.Angle

Angle returns the angle between v and ov.

func (Vector) ApproxEqual ¶

func (v Vector) ApproxEqual(ov Vector) bool

ApproxEqual reports whether v and ov are equal within a small epsilon.

func (Vector) Cross ¶

func (v Vector) Cross(ov Vector) Vector

Cross returns the standard cross product of v and ov.

func (Vector) Distance ¶

func (v Vector) Distance(ov Vector) float64

Distance returns the Euclidean distance between v and ov.

func (Vector) Dot ¶

func (v Vector) Dot(ov Vector) float64

Dot returns the standard dot product of v and ov.

func (Vector) IsUnit ¶

func (v Vector) IsUnit() bool

IsUnit returns whether this vector is of approximately unit length.

func (Vector) Mul ¶

func (v Vector) Mul(m float64) Vector

Mul returns the standard scalar product of v and m.

func (Vector) Norm ¶

func (v Vector) Norm() float64

Norm returns the vector's norm.

func (Vector) Norm2 ¶

func (v Vector) Norm2() float64

Norm2 returns the square of the norm.

func (Vector) Normalize ¶

func (v Vector) Normalize() Vector

Normalize returns a unit vector in the same direction as v.

func (Vector) Ortho ¶

func (v Vector) Ortho() Vector

Ortho returns a unit vector that is orthogonal to v. Ortho(-v) = -Ortho(v) for all v.

func (Vector) String ¶

func (v Vector) String() string

func (Vector) Sub ¶

func (v Vector) Sub(ov Vector) Vector

Sub returns the standard vector difference of v and ov.