Vector

Vector

Vector[point A, point B]

Vector from A to B

Vector[point]

Position vector of a point

Direction

Direction[line]

Direction vector of a line. A line with equation ax + by = c has direction (b, - a).

UnitVector

UnitVector[line]

Direction vector with length 1 of a line

UnitVector[vector]

Vector with length 1, same direction and orientation as the given vector

(4.3.5)

PerpendicularVector

PerpendicularVector[line]

Perpendicular vector of a line. A line with equation ax + by = c has the perpendicular vector (a, b).

PerpendicularVector[vector]

Perpendicular vector of a vector. A vector with coordinates (a, b) has the perpendicular vector (- b, a).

UnitPerpendicularVector

UnitPerpendicularVector[line]

Perpendicular vector with length 1 of a line.

UnitPerpendicularVector[vector]

Perpendicular vector with length 1 of a vector.