Lesson plan
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. The sine rule can be used to convert from biangular coordinates to two-center bipolar coordinates.
Article summary
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. The sine rule can be used to convert from biangular coordinates to two-center bipolar coordinates.
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Discussion questions
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