simplex

adj. having only one part or element; simple; of or pertaining to a telecommunications system that works in only one direction at a time

n. simple word, word that is not compounded (Linguistics); Euclidean geometrical spatial element that has the smallest number of boundary points (Mathematics); one-floor apartment

In geometry, a simplex (plural simplexes or simplices) or n-simplex is an n-dimensional analogue of a triangle. Specifically, a simplex is the convex hull of a set of (n + 1) affinely independent points in some Euclidean space of dimension n or higher (i.e., a set of points such that no m-plane contains more than (m + 1) of them; such points are said to be in general position).
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Adjective
1. allowing communication in only one direction at a time, or in telegraphy allowing only one message over a line at a time; "simplex system"
(similar) unidirectional
(classification) telecommunication, telecom
2. having only one part or element; "a simplex word has no affixes and is not part of a compound--like `boy' compared with `boyish' or `house' compared with `houseboat'"
(similar) simple

n. single line (Telecommunications)

<algorithm> An algorithm for solving the classical linear programming problem; developed by George B. Dantzig in 1947.
The simplex method is an iterative procedure, solving a system of linear equations in each of its steps, and stopping when either the optimum is reached, or the solution proves infeasible. The basic method remained pretty much the same over the years, though there were many refinements targeted at improving performance (eg. using sparse matrix techniques), numerical accuracy and stability, as well as solving special classes of problems, such as mixed-integer programming.
(2003-07-09)