PerpendicularLine Command

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PerpendicularLine[ <Point>, <Line> ]
Creates a line through the point perpendicular to the given line.
Example:
Let c: -3x + 4y = -6 be a line with the points A = (-2, -3) and B = (2, 0). 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 = 3.61 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 Vector[ (5, 3), (1, 1) ] be the vector u and A = (-2, 0) a point. PerpendicularLine[ A, u ] yields the line c: 2x + y = -4.


Note: See also Tool Perpendicular Line.gif Perpendicular Line tool.
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