page_title: Elliptic coordinate system
hierarchical_section_title: Elliptic coordinate system
context_page_description: In geometry, the elliptic coordinate system is a two-dimensional orthogonal coordinate system in which the coordinate lines are confocal ellipses and hyperbolae. The two foci and are generally taken to be fixed at and, respectively, on the -axis of the Cartesian coordinate system.
context_section_description: In geometry, the elliptic coordinate system is a two-dimensional orthogonal coordinate system in which the coordinate lines are confocal ellipses and hyperbolae.  The two foci  and  are generally taken to be fixed at  and , respectively, on the -axis of the Cartesian coordinate system.
caption: Elliptic coordinate system