A direct function (dfn, pronounced "dee fun") is an alternative way to define a function and operator (a higher-order function) in the programming language...

time-invariant (TI) system has a time-dependent system function that is not a direct function of time. Such systems are regarded as a class of systems...

tangent integral, polygamma function, Riemann zeta function, Dirichlet eta function, and Dirichlet beta function. The Clausen function of order 2 – often referred...

any measurable set is measurable. This is in direct analogy to the definition that a continuous function between topological spaces preserves the topological...

Bessel functions are mathematical special functions that commonly appear in problems involving wave motion, heat conduction, and other physical phenomena...

requirements of direct access of state spaces of large or variable-length keys. Use of hash functions relies on statistical properties of key and function interaction:...

direct function syntax where the left (optional) and right arguments are denoted by the letters alpha and omega. For example, the following function computes...

In mathematics, a monotonic function (or monotone function) is a function between ordered sets that preserves or reverses the given order. This concept...

Direct costs, in accounting, are costs directly accountable to a cost object (such as a particular project, facility, function, or product). The equivalent...

equation relates the pair correlation function to the direct correlation function. The direct correlation function is only used in connection with the OZ...

standard sea level values. It so happens that the speed of sound is a direct function of temperature, so instead of a standard temperature, we can define...

direct.h is a C/C++ header file provided by Microsoft Windows, which contains functions for manipulating file system directories. Some POSIX functions...

analytic function is a function that is locally given by a convergent power series. There exist both real analytic functions and complex analytic functions. Functions...

male that contribute towards the reproduction process. The primary direct function of the male reproductive system is to provide the male sperm for fertilization...

in Java when J/Direct was designed, Microsoft used a special syntax in Java comments. For example, to declare the GetSysColor function in the User32 API:...

{\displaystyle \circ } takes two functions, f {\displaystyle f} and g {\displaystyle g} , and returns a new function h ( x ) := ( g ∘ f ) ( x ) = g (...

the programming language APL. He was the designer and implementer of direct functions. John Scholes was born on 24 April 1948 to Gerry and Amy Scholes. He...

generating function is a representation of an infinite sequence of numbers as the coefficients of a formal power series. Generating functions are often...

In mathematics, theta functions are special functions of several complex variables. They show up in many topics, including Abelian varieties, moduli spaces...

another form of direct democracy, consisting of an assembly open to everyone within a local area or entity. Their roles and functioning have varied throughout...

continuation function is represented as a parameter named "k": In the CPS versions, the primitives used, like +& and *& are themselves CPS, not direct style...

In mathematics, the inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists...

rotation. The Gudermannian function gives a direct relationship between the circular functions and the hyperbolic functions that does not involve complex...

instrumental tool in various estimation problems. This is a direct result of the fact that ridge functions are constant in d − 1 {\displaystyle d-1} directions:...

Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through...

TDI (Turbocharged Direct Injection) is Volkswagen Group's term for its current common rail direct injection turbodiesel engine range that have an intercooler...

the theory of stochastic processes, a harmonic function is a twice continuously differentiable function f : U → R , {\displaystyle f\colon U\to \mathbb...

transmitted or not. Imperfections in the optics typically have a direct effect on the pupil function, it is therefore an important tool to study optical imaging...

internetworks such as the global Internet. Routers perform the "traffic directing" functions on the Internet. A router is connected to two or more data lines...

elliptic functions are elliptic functions that take a particularly simple form. They are named for Karl Weierstrass. This class of functions is also referred...