“PerpendicularVector 指令”的版本间的差异
来自GeoGebra Manual
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;PerpendicularVector[ <Line> ] | ;PerpendicularVector[ <Line> ] | ||
:{{translate|PerpendicularVector Command}} | :{{translate|PerpendicularVector Command}} | ||
+ | ;PerpendicularVector[Line] | ||
+ | :Returns the perpendicular vector of the line. | ||
+ | :{{note|1=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. | ||
+ | :{{note| 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. | ||
+ | :{{example|1=<div> | ||
+ | :* <code><nowiki>PerpendicularVector[(3, 2)]</nowiki></code> yields the vector ''{-2, 3}''. | ||
+ | :* <code><nowiki>PerpendicularVector[(a, b)]</nowiki></code> yields the vector ''{-b, a}''.</div>}} | ||
+ | {{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> ]
- PerpendicularVector[ <Segment> ]
- PerpendicularVector[ <Vector> ]
CAS 視窗
- PerpendicularVector[ <Line> ]
- 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:
See also UnitPerpendicularVector Command.