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functional root
(mathematics) A function which, when applied a given number of times, equals another given function.
function generator
An electronic device used to generate a signal representing the periodic value of a given mathematical function, especially sine, square, triangle and sawtooth waveforms
excitation function
(physics) The relationship between the energy of an electron and its ability to excite an atom to a particular excited state
cylinder function
(mathematics) Any function that is a solution of the Bessel equation
function code
(computing) Any character used to specify a function of a piece of software or hardware (such as carriage return of a printer)
entire function
(mathematics) Any function of a complex variable that is holomorphic throughout the complex plane
logarithmic function
(mathematics) Any function in which an independent variable appears in the form of a logarithm; they are the inverse functions of exponential functions
cost function
Any mathematical relationship between an activity and its cost.
decreasing function
(mathematics) Any function of a real variable whose value decreases (or is constant) as the variable increases.
dissipation function
(physics) The function governing the rate at which mechanical energy is converted to heat during viscous flow.
