Epitrochoid (Y-coordinate of a point)

Description

An epitrochoid is a roulette traced by a point attached to an external circle rolling around the outside of a fixed l circle , where the point is at a distance from the center of the exterior circle.

Related formulas

Variables

yY-Coordinate of the point (ordinate) (dimensionless)
RRadius of the fixed circle (dimensionless)
rRadius of the circle rolling around the outside of the fixed circle (dimensionless)
θThe parameter (depented on the angle) (dimensionless)
dThe distance from the center of the exterior circle. (dimensionless)