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sequence

An ordered list of numbers indexed by an integer, the mathematical object a discrete-time signal is.

A sequence is an ordered list of numbers $\{x[n]\}$ , one value per integer index $n$ . A discrete-time signal is a sequence — the two words describe the same object, "signal" emphasizing that it carries information, "sequence" emphasizing its indexed, ordered structure.

See also

discrete-time signal

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