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# Extension of a Source Definition/Meaning:

In coding theory, the process of encoding several symbols at a time, or the results thereof. If the symbols of a q-ary information source are taken at a time, and the words of length r are treated (e.g. encoded) as if they were themselves symbols of an alphabet of size qr. then this compound source is called the rth extension of the original source. See also source coding theorem.

## Near by Terms:

 Exception Excess-3 Code Excess Factor Excess-n Notation (excess notation) Exchange in a Network. Exchangeable Disk Store (EDS) Exchange Selection Exclusive-NOR Gate Exclusive-OR gate Exclusive-OR Operation Execute Execute Phase Execution States Execute Step Execution Time Executive Program Executive State (supervisor state) Exerciser Existential Quantifier Exit Point (exit) EXNOR Gate EXOR Gate Expectation Experimental Design Expert Systems Exploratory Data Analysis (EDA) Exponent Exponentially Bounded Algorithm Exponential Space Exponential Waveform Exponentiation Expression of Requirements Extended Addressing Extended BNF (EBNF) Extensibility Extensible Addressing Extensible Language Extension of a Source Extension Field External Device External Fragmentation External Interrupt External Node External Path Length of a Tree External Sorting External Storage Extrapolation Extrinsic Semiconductor

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