PerpendicularLine Command
From GeoGebra Manual
- PerpendicularLine[ <Point>, <Line> ]
- Creates a line through the point perpendicular to the given line.
- Example:Let c: -3x + 4y = -6 be a line and A = (-2, -3) a point.
PerpendicularLine[ A, c ]
yields the line d: -4x - 3y = 17.
- PerpendicularLine[ <Point>, <Segment> ]
- Creates a line through the point perpendicular to the given segment.
- Example:Let c be the segment between the two points A = (-3, 3) and B = (0, 1).
PerpendicularLine[ A, c ]
yields the line d: -3x + 2y = 15.
- PerpendicularLine[ <Point>, <Vector> ]
- Creates a line through the point perpendicular to the given vector.
- Example:Let u be a vector between two points: u = Vector[ (5, 3), (1, 1) ] and A = (-2, 0) a point.
PerpendicularLine[ A, u ]
yields the line c: 2x + y = -4.
Note: See also Perpendicular Line tool.
Following text is about a feature that is supported only in GeoGebra 5.0.
Note: From GeoGebra 5, this command will work in 3D as well |
- PerpendicularLine[ <Point>, <Line> ]
- Creates a line through the point perpendicular to the given line.
- Note: This command yields undefined if the point is on the line in 3D.
- PerpendicularLine[ <Point>, <Plane> ]
- Creates a perpendicular line to the plane through the given point.
- PerpendicularLine[ <Line> , <Line> ]
- Creates a perpendicular line to the given lines through the intersection point of the two lines.
- PerpendicularLine[ <Point>, <Line>, <Line> ]
- Creates a perpendicular line to the given lines through the given point.
- PerpendicularLine[ <Point>, <Vector>, <Vector> ]
- Creates a perpendicular line to the given vectors through the given point.
- PerpendicularLine[ <Point>, <Line>, <Context> ]
- Creates a perpendicular line to the line through the point.
Examples:
PerpendicularLine[ <Point>, <Line>, <Plane> ]
creates a perpendicular line to the given line through the point and parallel to the plane.
- Note: This command yields undefined if the point is on the line in 3D.
PerpendicularLine[ <Point>, <Line>, Space ]
creates a perpendicular line to the given line through the point. The two lines have an intersection point.