(mathematics) The solutions to Laplace's equation using spherical coordinates

(mathematical analysis) A study of the representation of functions or signals as the superposition of basic waves, involving the notions of harmonic functions, trigonometric series, Fourier series, Fourier transforms, almost periodic functions, and others.

(music, stringed instruments) a harmonic produced by lightly touching the string at the point where the notated pitch is played, but producing a different pitch

plural of natural harmonic

plural of false harmonic

(music) a sound produced by lightly touching the string as opposed to pressing it against the fingerboard, usually with the actual pitch notated

(mathematics, mathematical analysis) The divergent series whose terms are the reciprocals of the positive integers; the series ∑ₙ₌₁ ᪲1/n.

A device connected to the crankshaft of an engine to reduce torsional vibration and to serve as a pulley for drive belts.

plural of harmonic balancer

plural of harmonic mean