Solid angle (in spherical coordinates)
Effective diffusivity in porous media
Area of a convex quadrilateral (in terms of the sides and angles)
Rossby Number
F1 score
One-repetition maximum (McGlothin formula)
Epicycloid (The abscissa of a point)
Saturated Adiabatic Lapse Rate
Volume of Spherical Dome (or cap)
Damping ratio (related to Quality factor)