Difference between revisions of "PerpendicularLine Command"

Revision as of 15:08, 21 July 2014

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

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>, <Plane> ]: Creates a perpendicular line through the point and parallel to the plane.
PerpendicularLine[ <Point>, <Plane> ]: Creates a perpendicular line through the point and the plane.
PerpendicularLine[ <Line> , <Line> ]: Creates a perpendicular line through the intersection point of the two lines.

@@ Line 19: / Line 19: @@
 {{betamanual|version=5.0|
 {{Note|1=From GeoGebra 5, this command will work in 3D as well}}
+;PerpendicularLine[ <Point>, <Line>, <Plane> ]
+:Creates a perpendicular line through the point and parallel to the plane.
+;PerpendicularLine[ <Point>, <Plane> ]
+:Creates a perpendicular line through the point and the plane.
+;PerpendicularLine[ <Line> , <Line> ]
+:Creates a perpendicular line through the intersection point of the two lines.
 }}