Biangular coordinates

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Biangular coordinates

In mathematics, biangular coordinates are a coordinate system for the plane where C1 and C2 are two fixed points, and the position of a point P not on the line C1C2 is determined by the angles PC1C2 and PC2C1.[1]

The sine rule can be used to convert from biangular coordinates to two-center bipolar coordinates.

Applications

Biangular coordinates can be used in geometric modelling and CAD.[2][3]

See also

References

  1. Naylor, Michael; Winkel, Brian (2010), "Biangular Coordinates Redux: Discovering a New Kind of Geometry" (in English), The College Mathematics Journal 41 (1): 29–41, doi:10.4169/074683410X475092 
  2. Ziatdinov, R.; Kim, T. W.; Nabiyev, R. I. (2015), "Two-point G1 Hermite interpolation in biangular coordinates" (in English), Journal of Computational and Applied Mathematics 287: 1–11, doi:10.1016/j.cam.2015.02.040, https://www.sciencedirect.com/science/article/pii/S0377042715001107 
  3. Ziatdinov, R.; Yoshida, N.; Kim, T. W. (2017), "Visualization and analysis of regions of monotonic curvature for interpolating segments of extended sectrices of Maclaurin" (in English), Computer Aided Geometric Design 56: 35–47, doi:10.1016/j.cagd.2017.06.003, https://www.sciencedirect.com/science/article/pii/S0167839617301206