Statics, mechanical advantage and virtual work.
Calculus Derivative : The slope of a function and/or something more abstract.
Mesoheptahedron : Mesohedron with 7 faces.
Shapiro time delay : Effect on radar signals of gravitational time dilation.3-sided spindle : A 9-hedron with 6 unstable berkeley bold italic font faces.Bearing : Unless otherwise specified, this is the angle west of north.Electromagnetic Dipoles Molecular electric dipole moments. .Far image of a picture on translucent film is its Fourier transform.From the north side, a counterclockwise angle is positive by definition.Quantum Field Theory Quantum Electrodynamics (QED) is the simplest quantum field theory.In a mathematical context only?, yes.
The Mercator series is the integral of the geometric series (1668).
The frog number is the cotangent of the frog angle.
Light falls off as cos4 q (where q angular distance to the image center).Indian numeration became a positional system with the introduction of zero.Counting, Combinatorics, Probability Always change your first guess if you're always told another choice is bad.Wythoff's Game : Take either from one heap or equally from both heaps.Guide number (GN) duration control.