The analog of trilinear coordinates for tetrahedra.
Quadriplanar Coordinates
See also
Tetrahedron, Trilinear CoordinatesExplore with Wolfram|Alpha
References
Altshiller-Court, N. Modern Pure Solid Geometry. New York: Chelsea, 1979.Mitrinović, D. S.; Pec_arić, J. E.; and Volenec, V. Ch. 19 in Recent Advances in Geometric Inequalities. Dordrecht, Netherlands: Kluwer, 1989.Woods, F. S. Higher Geometry: An Introduction to Advanced Methods in Analytic Geometry. New York: Dover, pp. 193-196, 1961.Referenced on Wolfram|Alpha
Quadriplanar CoordinatesCite this as:
Weisstein, Eric W. "Quadriplanar Coordinates." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/QuadriplanarCoordinates.html