Difference between revisions of "Circle Command"
From GeoGebra Manual
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{{command|conic}} | {{command|conic}} | ||
| − | ; Circle[Point M, Number r] : Yields a circle with center ''M'' and radius ''r''. | + | ;Circle[ <Point M>, <Number r> ]:Yields a circle with center ''M'' and radius ''r''. |
| − | ; Circle[Point M, Segment] : Yields a circle with center ''M'' and radius equal to the length of the given segment. | + | ;Circle[ <Point M>, <Segment> ]:Yields a circle with center ''M'' and radius equal to the length of the given segment. |
| − | ; Circle[Point M, Point A] : Yields a circle with center ''M'' through point ''A''. | + | ;Circle[ <Point M>, <Point A> ]:Yields a circle with center ''M'' through point ''A''. |
| − | ; Circle[Point A, Point B, Point C] : Yields a circle through the given points ''A'', ''B'' and ''C''. | + | ;Circle[ <Point A>, <Point B>, <Point C> ]:Yields a circle through the given points ''A'', ''B'' and ''C''. |
| − | {{Note| See also [[Compass Tool|Compass]], [[Circle with Center through Point Tool|Circle with Center through Point]], [[Circle with Center and Radius Tool|Circle with Center and Radius]], and [[Circle through Three Points Tool|Circle through Three Points]] tools.}} | + | :{{Note|1=See also [[Compass Tool|Compass]], [[Circle with Center through Point Tool|Circle with Center through Point]], [[Circle with Center and Radius Tool|Circle with Center and Radius]], and [[Circle through Three Points Tool|Circle through Three Points]] tools.}} |
| − | {{betamanual|version=5.0| | + | {{betamanual|version=5.0|{{Note|1=From GeoGebra 5, this command will work in 3D with 3D Points as well}} |
| − | {{Note|1=From GeoGebra 5, this command will work in 3D with 3D Points as well}} | ||
}} | }} | ||
Revision as of 07:54, 21 November 2012
- Circle[ <Point M>, <Number r> ]
- Yields a circle with center M and radius r.
- Circle[ <Point M>, <Segment> ]
- Yields a circle with center M and radius equal to the length of the given segment.
- Circle[ <Point M>, <Point A> ]
- Yields a circle with center M through point A.
- Circle[ <Point A>, <Point B>, <Point C> ]
- Yields a circle through the given points A, B and C.
- Note: See also Compass, Circle with Center through Point, Circle with Center and Radius, and Circle through Three Points tools.
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Following text is about a feature that is supported only in GeoGebra 5.0.
Note: From GeoGebra 5, this command will work in 3D with 3D Points as well |
Comments
Tips[edit]
Use circles to fix the distance between two objects[edit]
Circles are a great way to make the distance between two objects constant: If there are two points A and B on two lines g (point A) and h (point B) where A can be moved and B should have the constant distance r to A you can define B as the intersection between the line h and the circle around A with the radius r. As a circle intersects a line at two points (in case it's not tangetial or passing by) you have to hide & ignore the second intersection.
