Difference between revisions of "CrossRatio Command"
From GeoGebra Manual
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; CrossRatio[Point A, Point B, Point C, Point D]: Calculates the cross ratio λ of four collinear points ''A'', ''B'', ''C'', and ''D'', where ''λ = AffineRatio[B, C, D] / AffineRatio[A, C, D]''. | ; CrossRatio[Point A, Point B, Point C, Point D]: Calculates the cross ratio λ of four collinear points ''A'', ''B'', ''C'', and ''D'', where ''λ = AffineRatio[B, C, D] / AffineRatio[A, C, D]''. |
Revision as of 12:50, 22 October 2010
- CrossRatio[Point A, Point B, Point C, Point D]
- Calculates the cross ratio λ of four collinear points A, B, C, and D, where λ = AffineRatio[B, C, D] / AffineRatio[A, C, D].