수직선 명령
GeoGebra Manual
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- PerpendicularLine( <Point>, <Line> )
- Creates a line through the point perpendicular to the given line.
- 예:Let
c: -3x + 4y = -6
be a line andA = (-2, -3)
a point.PerpendicularLine(A, c)
yields the line d: -4x - 3y = 17. - 노트: For 3D objects a third argument is added to this command to specify the behavior: if 2D view is active, plane z=0 is used as third argument, if 3D view is active, space is used instead. See PerpendicularLine( <Point>, <Line>, <Context> ) further below for details.
- PerpendicularLine( <Point>, <Segment> )
- Creates a line through the point perpendicular to the given segment.
- 예: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.
- 예:Let
u = Vector((5, 3), (1, 1))
andA = (-2, 0)
a point.PerpendicularLine(A, u)
yields the line c: 2x + y = -4.
- 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>, <Direction>, <Direction> )
- Creates a perpendicular line to the given directions (that can be lines or vectors) through the given point.
- PerpendicularLine( <Point>, <Line>, <Context> )
- Creates a perpendicular line to the line through the point and depending on the context.
- PerpendicularLine( <Point>, <Line>, <Plane> ) creates a perpendicular line to the given line through the point and parallel to the plane.
- PerpendicularLine( <Point>, <Line>, space ) creates a perpendicular line to the given line through the point. The two lines have an intersection point. This command yields undefined if the point is on the line in 3D.
노트: See also Perpendicular Line tool.