Example image of eyePlorer eyePlorer map for 'Solid angle': Subtended angle Area Unit sphere Vertex (geometry) Angle Unit circle International System of Units Steradian Square degree Orientation (mathematics) Surface integral Euclidean vector Isomorphism Boundary element method Ligand Ligand cone angle Luminance Luminous intensity Spherical trigonometry Electric field Magnetic field Tetrahedron Dihedral angle Determinant Dot product Triple product Simon Antoine Jean L'Huilier Apex (geometry) Cone (geometry) Spherical cap Multiple integral Archimedes Calculus Sphere Celestial sphere Pyramid Globe Equator Latitude Radian Longitude Great circle Moon N-sphere Sun Gamma function Measure (mathematics) 4Pi Intensity (heat transfer) Radiance