Bangular coordinate system

Biangular coordinates - a coordinate system on a plane with two fixed points $C_{1}$ ${\ displaystyle C_ {1}}$ $C_ {1}$ and $C_{2}$ ${\ displaystyle C_ {2}}$ $C_ {2}$ in which point position $P$ ${\ displaystyle P}$ $P$ not lying on a straight line ${\overline {C_{1}C_{2}}}$ ${\ displaystyle {\ overline {C_ {1} C_ {2}}}}$ ${\ displaystyle {\ overline {C_ {1} C_ {2}}}}$ given by two angles: $\angle PC_{1}C_{2}$ ${\ displaystyle \ angle PC_ {1} C_ {2}}$ ${\ displaystyle \ angle PC_ {1} C_ {2}}$ and $\angle PC_{2}C_{1}$ ${\ displaystyle \ angle PC_ {2} C_ {1}}$ ${\ displaystyle \ angle PC_ {2} C_ {1}}$ .

In some sources they are called bipolar coordinates ^[1] .

Notes

↑ Bipolar coordinates // Encyclopedic dictionary of Brockhaus and Efron : in 86 tons (82 tons and 4 extra). - SPb. , 1890-1907.

Links

Zerr GBM Biangular Coordinates . - The American Mathematical Monthly. - Vol. 17. - No. 2. - (Feb., 1910). - pp. 34–38.
Naylor . A New Kind of Geometry: the Biangular Coordinate System.

[ЭСБЕ-1] Bipolar coordinates // Encyclopedic dictionary of Brockhaus and Efron : in 86 tons (82 tons and 4 extra). - SPb. , 1890-1907.

Bangular coordinate system

See also

Notes

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