Biangular coordinates

Biangular coordinates

In mathematics, biangular coordinates are a coordinate system for the plane where $C_1\,\!$ and $C_2\,\!$ are two fixed points, and the position of a point P not on the line $\overline{C_1C_2}\,\!$ is determined by the angles $\angle PC_1C_2\,\!$ and $\angle PC_2C_1\,\!$ .

References

• G. B. M. Zerr Biangular Coordinates
• Naylor, “A New Kind of Geometry: the Biangular Coordinate System”
• J. C. L. Fish.Coordinates Of Elementary Surveying, p.38, READ BOOKS, 2007
• George Shoobridge Carr. Formulas and theorems in pure mathematics. p.742. Chelsea Pub. Co., 1970
• Howard W. Baeumler. Biangular coordinates. University of Buffalo, 1950