Difference between revisions of "Circle Command"
From GeoGebra Manual
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{{command|conic}} | {{command|conic}} | ||
| − | ;Circle[ <Point | + | ;Circle[ <Point>, <Radius Number> ]:Yields a circle with given center and radius. |
| − | ;Circle[ <Point | + | ;Circle[ <Point>, <Segment> ]:Yields a circle with given center and radius equal to the length of the given segment. |
| − | ;Circle[ <Point | + | ;Circle[ <Point>, <Point> ]:Yields a circle with given center through a given point. |
| − | ;Circle[ <Point | + | ;Circle[ <Point>, <Point>, <Point> ]:Yields a circle through the three given points (if they do not lie on one line). |
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| + | {{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.}} | ||
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{{betamanual|version=5.0|{{Note|1=From GeoGebra 5, this command will work in 3D with 3D Points as well}} | {{betamanual|version=5.0|{{Note|1=From GeoGebra 5, this command will work in 3D with 3D Points as well}} | ||
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Revision as of 11:54, 26 April 2013
- Circle[ <Point>, <Radius Number> ]
- Yields a circle with given center and radius.
- Circle[ <Point>, <Segment> ]
- Yields a circle with given center and radius equal to the length of the given segment.
- Circle[ <Point>, <Point> ]
- Yields a circle with given center through a given point.
- Circle[ <Point>, <Point>, <Point> ]
- Yields a circle through the three given points (if they do not lie on one line).
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.
