Difference between revisions of "UnitPerpendicularVector Command"
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− | <noinclude>{{Manual Page | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|vector-matrix}} |
− | {{command|vector-matrix}} | + | ;UnitPerpendicularVector( <Line>) |
− | ; UnitPerpendicularVector | + | :Returns the perpendicular vector with length 1 of the given line. |
− | ; UnitPerpendicularVector | + | :{{example|1=<div><code><nowiki>UnitPerpendicularVector(3x + 4y = 5)</nowiki></code> yields ''<math>\begin{pmatrix}0.6\\0.8\end{pmatrix}</math>''.</div>}} |
+ | ;UnitPerpendicularVector( <Segment> ) | ||
+ | :Returns the perpendicular vector with length 1 of the given segment. | ||
+ | :{{example|1=<div>Let <code><nowiki>s = Segment((1,1), (4,5))</nowiki></code>.<div><code><nowiki>UnitPerpendicularVector(s)</nowiki></code> yields ''<math>\begin{pmatrix}-0.8\\0.6\end{pmatrix}</math>''.</div></div>}} | ||
+ | ;UnitPerpendicularVector( <Vector> ) | ||
+ | :Returns the perpendicular vector with length 1 of the given vector. The vector must be defined first. | ||
+ | :{{example|1=<div>Let v=<math>\begin{pmatrix}3\\4\end{pmatrix}</math>. <code><nowiki>UnitPerpendicularVector(v)</nowiki></code> yields ''<math>\begin{pmatrix}-0.8\\0.6\end{pmatrix}</math>''.</div>}} | ||
+ | {{note|In the [[File:Menu view cas.svg|link=|16px]] [[CAS View]] vectors with undefined variables are also valid input. | ||
+ | :{{example|<div><code><nowiki>UnitPerpendicularVector((a, b))</nowiki></code> yields ''(<math>\frac{-b}{\sqrt{a^{2} + b^{2}}}</math>,<math>\frac{a}{\sqrt{a^{2} + b^{2}}}</math>)''.</div>}} | ||
+ | }} | ||
+ | |||
+ | ==CAS Syntax== | ||
+ | ;UnitPerpendicularVector( <Plane> ) | ||
+ | :Creates a unit vector orthogonal to the plane. | ||
+ | |||
+ | {{note| 1=<div>See also [[PerpendicularVector Command]].</div>}} |
Latest revision as of 17:46, 29 September 2017
- UnitPerpendicularVector( <Line>)
- Returns the perpendicular vector with length 1 of the given line.
- Example:
UnitPerpendicularVector(3x + 4y = 5)
yields \begin{pmatrix}0.6\\0.8\end{pmatrix}.
- UnitPerpendicularVector( <Segment> )
- Returns the perpendicular vector with length 1 of the given segment.
- Example:Let
s = Segment((1,1), (4,5))
.UnitPerpendicularVector(s)
yields \begin{pmatrix}-0.8\\0.6\end{pmatrix}.
- UnitPerpendicularVector( <Vector> )
- Returns the perpendicular vector with length 1 of the given vector. The vector must be defined first.
- Example:Let v=\begin{pmatrix}3\\4\end{pmatrix}.
UnitPerpendicularVector(v)
yields \begin{pmatrix}-0.8\\0.6\end{pmatrix}.
Note: In the CAS View vectors with undefined variables are also valid input.
- Example:
UnitPerpendicularVector((a, b))
yields (\frac{-b}{\sqrt{a^{2} + b^{2}}},\frac{a}{\sqrt{a^{2} + b^{2}}}).
CAS Syntax
- UnitPerpendicularVector( <Plane> )
- Creates a unit vector orthogonal to the plane.
Note:
See also PerpendicularVector Command.