heaviside function
81Piecewise — In mathematics, a piecewise defined function (also called a piecewise function) is a function whose definition is dependent on the value of the independent variable. Mathematically, a real valued function f of a real variable x is a relationship… …
82Support (mathematics) — In mathematics, the support of a function is the set of points where the function is not zero, or the closure of that set [1]:678. This concept is used very widely in mathematical analysis. In the form of functions with support that is bounded,… …
83Propagator — This article is about Quantum field theory. For plant propagation, see Plant propagation. Quantum field theory …
84Random variable — A random variable is a rigorously defined mathematical entity used mainly to describe chance and probability in a mathematical way. The structure of random variables was developed and formalized to simplify the analysis of games of chance,… …
85Chebyshev polynomials — Not to be confused with discrete Chebyshev polynomials. In mathematics the Chebyshev polynomials, named after Pafnuty Chebyshev,[1] are a sequence of orthogonal polynomials which are related to de Moivre s formula and which can be defined… …
86Skin effect — Skin depth redirects here. For the depth (layers) of biological/organic skin, see skin. Skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor with the current density being largest near the… …
87Analytic signal — Not to be confused with Analytic function. In mathematics and signal processing, the analytic representation of a real valued function or signal facilitates many mathematical manipulations of the signal. The basic idea is that the negative… …
88Mathematische Zeichen — Die Notation in der mathematischen Symbolschrift erfolgt in der Mathematik (z. B. in Formeln oder Gleichungen) unter der Verwendung von Symbolen. Beispielsweise wird die Addition von zwei Zahlen durch das Zeichen + dargestellt. Mehr über die… …
89Mathematisches Symbol — Die Notation in der mathematischen Symbolschrift erfolgt in der Mathematik (z. B. in Formeln oder Gleichungen) unter der Verwendung von Symbolen. Beispielsweise wird die Addition von zwei Zahlen durch das Zeichen + dargestellt. Mehr über die… …
90algebra — /al jeuh breuh/, n. 1. the branch of mathematics that deals with general statements of relations, utilizing letters and other symbols to represent specific sets of numbers, values, vectors, etc., in the description of such relations. 2. any of… …
