Difference between revisions of "TriangleCenter Command"
From GeoGebra Manual
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{{command|geometry}} | {{command|geometry}} | ||
;TriangleCenter[ <Point>, <Point>, <Point>, <Number> ] | ;TriangleCenter[ <Point>, <Point>, <Point>, <Number> ] | ||
| − | :gives ''n''-th [http://faculty.evansville.edu/ck6/encyclopedia/ETC.html triangle center] of triangle ''ABC''. Works for n<3054. | + | :gives ''n''-th [http://faculty.evansville.edu/ck6/encyclopedia/ETC.html triangle center] of triangle ''ABC''. Works for ''n < 3054''. |
| − | + | :{{example|1= <div>Let ''A = (1, -2)'', ''B = (6, 1)'' and ''C = (4, 3)''. <br> <code><nowiki>TriangleCenter[A, B, C, 2]</nowiki></code> yields the centroid ''D = (3.67, 0.67)'' of the triangle ''ABC''. </div>}} | |
| − | :{{example|1= | ||
| − | ''A = (1, -2)'', ''B = (6, 1)'' | ||
==Some common triangle centers== | ==Some common triangle centers== | ||
Revision as of 10:35, 3 September 2013
- TriangleCenter[ <Point>, <Point>, <Point>, <Number> ]
- gives n-th triangle center of triangle ABC. Works for n < 3054.
- Example:Let A = (1, -2), B = (6, 1) and C = (4, 3).
TriangleCenter[A, B, C, 2]yields the centroid D = (3.67, 0.67) of the triangle ABC.
Some common triangle centers
| Index n | Center |
|---|---|
| 1 | Incenter |
| 2 | Centroid |
| 3 | Circumcenter |
| 4 | Orthocenter |
| 5 | Nine-point center |
| 6 | Symmedian point |
| 7 | Gergonne point |
| 8 | Nagel point |
| 13 | Fermat point |
