# bispherical coordinates

> 3D orthogonal coordinate system that results from rotating the 2D bipolar coordinate system about the axis that connects the two foci

**Wikidata**: [Q4918412](https://www.wikidata.org/wiki/Q4918412)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Bispherical_coordinates)  
**Source**: https://4ort.xyz/entity/bispherical-coordinates