In mathematics, a rose or rhodonea curve is a sinusoid plotted in polar coordinates.
the polar coordinate system is a two-dimensional coordinate system in
Oblate spheroid equation(c<a)
A spheroid, or ellipsoid of revolution is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid
Polar coordinates of a line
In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a fixed
The Archimedean spiral is the locus of points corresponding to the locations over time of a point moving away from a fixed point with a constant speed
In astronomy, Kepler’s laws of planetary motion are three scientific laws describing the motion of planets around the Sun.
1- The orbit of