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Trilinear Vertex Matrix

Given a reference triangle DeltaABC, the trilinear vertex matrix of another triangle DeltaA^'B^'C^' is the 3×3 matrix whose rows are the trilinear coordinates of the vertices A^', B^', and C^'. For example, DeltaABC has trilinear vertex matrix

[1 0 0; 0 1 0; 0 0 1]

and the orthic triangle has trilinear vertex matrix

[0 secB secC; secA 0 secC; secA secB 0].

See also

Reference Triangle, Trilinear Coordinates

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Cite this as:

Weisstein, Eric W. "Trilinear Vertex Matrix." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/TrilinearVertexMatrix.html

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