discrete
71Discrete probability distribution — In probability theory, a probability distribution is called discrete if it is characterized by a probability mass function. Thus, the distribution of a random variable X is discrete, and X is then called a discrete random variable, if:sum u… …
72Discrete valuation — In mathematics, a discrete valuation is an integer valuation on a field k, that is a function satisfying the conditions . Note that often the trivial valuation which takes on only the values …
73Discrete measure — In mathematics, more precisely in measure theory, a measure on the real line is called a discrete measure (in respect to the Lebesgue measure) if its support is at most a countable set. Note that the support need not be a discrete set.… …
74Discrete exterior calculus — In mathematics, the discrete exterior calculus (DEC) is the extension of the exterior calculus to discrete spaces including graphs and finite element meshes. DEC methods have proved to be very powerful in improving and analyzing finite element… …
75Discrete dipole approximation codes — This article contains list of discrete dipole approximation codes and their applications. The discrete dipole approximation (DDA) is a flexible technique for computing scattering and absorption by targets of arbitrary geometry. Given a target of… …
76Discrete system — A discrete system is a system with a countable number of states. Discrete systems may be contrasted with continuous systems, which may also be called analog systems. A final discrete system is often modeled with a directed graph and is analyzed… …
77Discrete valuation ring — In abstract algebra, a discrete valuation ring (DVR) is a principal ideal domain (PID) with exactly one non zero maximal ideal. This means a DVR is an integral domain R which satisfies any one of the following equivalent conditions: R is a local… …
78Discrete event dynamic system — In control engineering, a discrete event dynamic system (DEDS) is a discrete state, event driven system of which the state evolution depends entirely on the occurrence of asynchronous discrete events over time. Although similar to continuous… …
79Discrete frequency domain — A discrete frequency domain is a frequency domain that is discrete rather than continuous. For example, the discrete Fourier transform maps a function having a discrete time domain into one having a discrete frequency domain. The discrete time… …
80Discrete category — In mathematics, especially category theory, a discrete category is a category whose only morphisms are the identity morphisms. It is the simplest kind of category. Specifically a category C is discrete if homC(X, X) = {idX} for all objects X… …
