Trilinear Command

From GeoGebra Manual
Revision as of 10:52, 21 August 2013 by MagdalenaSophieF (talk | contribs)
Jump to: navigation, search



Trilinear[ <Point>, <Point>, <Point>, <Number>, <Number>, <Number> ]
creates point whose trilinear coordinates with respect to triangle with given points are the given numbers.


Some examples :

Point <Number> <Number> <Number>
A 1 0 0
B 0 1 0
C 0 0 1
CircumCenter cos(\hat{A}) cos(\hat{B}) cos(\hat{C})
Center of Incircle 1 1 1
Center of excircle tangent to [BC] -1 1 1
Center of excircle tangent to [AC] 1 -1 1
Center of excircle tangent to [AB] 1 1 -1
Centroid \frac{1}{a} \frac{1}{b} \frac{1}{c}
Orthocenter cos(\hat{B}) cos(\hat{C}) cos(\hat{A}) cos(\hat{C}) cos(\hat{A})cos(\hat{B})
© 2021 International GeoGebra Institute