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Filters
Filtration is a physical process that separates solid matter and fluid from a mixture. Filter, filtering, filters or filtration may also refer to: Science and technology Computing * Filter (higher-order function), in functional programming * Filter (software), a computer program to process a data stream * Filter (video), a software component that performs some operation on a multimedia stream * Information filtering system ** Email filtering, the processing of email to organize it according to specified criteria * Content-control software also known as an Internet filter * Wordfilter, a script typically used on Internet forums or chat rooms * Berkeley Packet Filter, filter expression used in the qualification of network data * DSL filter, a low-pass filter installed between analog devices and a telephone line * Helicon Filter, a raster graphics editor * Filter (large eddy simulation), a mathematical operation intended to remove a range of small scales from the solution to the Navi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filters In Topology
In topology, filters can be used to study topological spaces and define basic topological notions such as convergence (topology), convergence, Continuous map (topology), continuity, Compact space, compactness, and more. Filter (set theory), Filters, which are special Family of sets, families of subsets of some given set, also provide a common framework for defining various types of Limit of a function, limits of functions such as limits from the left/right, to infinity, to a point or a set, and many others. Special types of filters called have many useful technical properties and they may often be used in place of arbitrary filters. Filters have generalizations called (also known as ) and , all of which appear naturally and repeatedly throughout topology. Examples include Neighbourhood system, neighborhood filters/Neighborhood base, bases/subbases and Uniform space, uniformities. Every filter is a prefilter and both are filter subbases. Every prefilter and filter subbase is con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
