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121Hyperbolic function — A ray through the origin intercepts the hyperbola in the point , where is twice the area between the ray and the …
122Bessel function — Math. one of several transcendental functions, usually represented as power series, that are solutions to a group of related differential equations. [1870 75; named after F. W. BESSEL] * * * ▪ mathematics also called Cylinder Function, … …
123Artin-Mazur zeta function — In mathematics, the Artin Mazur zeta function is a tool for studying the iterated functions that occur in dynamical systems and fractals.It is defined as the formal power series :zeta f(z)=exp sum {n=1}^infty extrm{card} left( extrm{Fix} (f^n)… …
124Ramp function — The ramp function is an elementary unary real function, easily computable as the mean of its independent variable and its absolute value.This function is applied in engineering (e.g., in the theory of DSP). The name ramp function can be derived… …
125Modulation transfer function (infrared imaging) — The Modulation Transfer Function (MTF) is used to approximate the position of best focus of an infrared imaging system. In an imaging system, best focus is typically achieved when the MTF is between 0.4 and 0.6; most often at 0.5 (50% cutoff… …
126Singular function — The graph of the winding number of the circle map is an example of a singular function. In mathematics, a singular function is any function ƒ defined on the interval [a, b] that has the following properties: ƒ is continuous on [a, b]. (**) there… …
127Boolean function — In mathematics, a (finitary) Boolean function is a function of the form f : B k rarr; B, where B = {0, 1} is a Boolean domain and k is a nonnegative integer called the arity of the function. In the case where k = 0, the function is essentially a… …
128Binary entropy function — In information theory, the binary entropy function, denoted H(p) , or H {mathrm b}(p) ,, is defined as the entropy of a Bernoulli trial with probability of success p . Mathematically, the Bernoulli trial is modelled as a random variable X that… …
