Example image of eyePlorer eyePlorer map for 'Semi-minor axis': Conic section Geometry Line segment Right angle Semi-major axis Reflection symmetry Ellipse Focus (geometry) Eccentricity (mathematics) Parabola Hyperbola Fermat–Apollonius circle Oblate spheroid Oblate spheroidal coordinates Reference ellipsoid Hyperboloid Sphericity Dumbbell Nebula Pi Mensae b Squircle Circumference Ellipsoid Mark II (radio telescope) Chester Roman Amphitheatre GRS 80 Apsis Stokes parameters Radius of curvature (applications) Geographic coordinate system Milankovitch cycles Gravitomagnetism British national grid reference system Earth radius Steiner chain Kepler's laws of planetary motion Singular value decomposition