“PerpendicularVector 指令”的版本间的差异

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;PerpendicularVector[ <Line> ]
 
;PerpendicularVector[ <Line> ]
 
:{{translate|PerpendicularVector Command}}
 
:{{translate|PerpendicularVector Command}}
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;PerpendicularVector[Line]
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:Returns the perpendicular vector of the line.
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:{{note|1=A line with equation ''ax + by = c'' has the perpendicular vector ''(a, b)''.}}
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;PerpendicularVector[Segment]
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:Returns the perpendicular vector of the segment with the same length.
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; PerpendicularVector[Vector v]
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:Returns the perpendicular vector of the given vector.
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:{{note| A vector with coordinates ''(a, b)'' has the perpendicular vector ''(-b, a)''.}}
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==CAS Syntax==
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; PerpendicularVector[Vector v]
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:Returns the perpendicular vector of the given vector.
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:{{example|1=<div>
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:* <code><nowiki>PerpendicularVector[(3, 2)]</nowiki></code> yields the vector ''{-2, 3}''.
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:* <code><nowiki>PerpendicularVector[(a, b)]</nowiki></code> yields the vector ''{-b, a}''.</div>}}
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{{note| 1=<div>See also [[UnitPerpendicularVector Command]].</div>}}

2011年10月20日 (四) 03:10的最新版本

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PerpendicularVector[ <Line> ]
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PerpendicularVector[ <Segment> ]
UnderConstruction.png
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PerpendicularVector[ <Vector> ]
UnderConstruction.png
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CAS 視窗

PerpendicularVector[ <Line> ]
UnderConstruction.png
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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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