(mathematical analysis) Any smooth (infinitely differentiable) function f, defined on an open set D⊆ℂ( textit or⊆ℝ), whose value in some neighbourhood of any given point x_0∈D is given by the Taylor series ∑ₙ₌₀ ᪲(f⁽ⁿ⁾(x_0))/(n!)(x-x_0)ⁿ.

(mathematics) A transformation of the complex plane associated with fluid flow / (physics) The equation used to express Helmholtz free energy

(mathematics) Any function (polynomial) whose greatest exponent is 3.

(mathematics) The branch of mathematics dealing with infinite-dimensional vector spaces, whose elements are actually functions, as well as generalizations such as Banach spaces and Hilbert spaces.

(mathematics) Alternative spelling of homogeneous function

(mathematics) homogeneous polynomial

A work that can be considered to be of practical use, such as software, encyclopedias, dictionaries and textbooks; it has no point of view and is non-fiction.

(mathematical analysis) a function whose value at any point in its domain is equal its limit at the same point

Any fresh or processed food claimed to have a health-promoting and/or disease-preventing property beyond the basic function of supplying nutrients

A condition or capability that a system, person or object has to satisfy, fulfill or comply with. / (computing) Any of the functions of a software system, described formally.