Conic section (polar system and one focus on the pole and the other somewhere on the 0° ray )

Description

conic section (or just conic) is a curve obtained as the intersection of a cone (more precisely, a right circular conical surface) with a plane. A conic section with one focus on the pole and the other somewhere on the 0° ray (so that the conic’s major axis lies along the polar axis) is given by a polar equation.

Related formulas

Variables

rRadius ( radial coordinate) (dimensionless)
lSemi-latus rectum (the perpendicular distance at a focus from the major axis to the curve (dimensionless)
eEccentricity (dimensionless)
ϕAngle (angular coordinate) (dimensionless)