The midpoint of the major axis is the center. They can be named as hyperbola or parabola and there are special formulas or equation to solve the tough Ellipse problems. The axis perpendicular to the major axis is the minor axis.
The focus points for the ellipse are at F 1 and F 2.
List of Basic Ellipse Formula. F 1 M 1 F 2 M 1 F 1 M 2 F 2 M 2 A 1 A 2 const. 75 r th a b b cos th 2 a sin th 2 b 1 e cos th 2 displaystyle rtheta frac absqrt bcos theta 2asin theta 2frac bsqrt 1-ecos theta 2. Solving the equation 1 we get.