PerpendicularVector 指令

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PerpendicularVector[ <Line> ]
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PerpendicularVector[ <Segment> ]
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PerpendicularVector[ <Vector> ]
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CAS 視窗

PerpendicularVector[ <Line> ]
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PerpendicularVector[Line]
Returns the perpendicular vector of the line.
備註: A line with equation ax + by = c has the perpendicular vector (a, b).
PerpendicularVector[Segment]
Returns the perpendicular vector of the segment with the same length.
PerpendicularVector[Vector v]
Returns the perpendicular vector of the given vector.
備註: A vector with coordinates (a, b) has the perpendicular vector (-b, a).

CAS Syntax

PerpendicularVector[Vector v]
Returns the perpendicular vector of the given vector.
範例:
  • PerpendicularVector[(3, 2)] yields the vector {-2, 3}.
  • PerpendicularVector[(a, b)] yields the vector {-b, a}.
備註:
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