Term
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Meaning
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Complex signal
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Signal whose values are complex numbers.
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Data type
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Format used to represent signal values internally. See Working with Data Types for more information.
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Matrix
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Two-dimensional signal array.
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Real signal
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Signal whose values are real (as opposed to complex) numbers.
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Scalar
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One-element array, i.e., a one-element, 1-D or 2-D array.
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Signal bus
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Signal created by a Mux or Demux block.
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Signal propagation
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Process used by Simulink to determine attributes of signals and blocks, such as data types, labels, sample time, dimensionality, and so on, that are determined by connectivity.
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Size
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Number of elements that a signal contains. The size of a matrix (2-D) signal is generally expressed as M-by-N where M is the number of columns and N is the number of rows making up the signal.
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Vector
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One-dimensional signal array.
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Virtual signal
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Signal that represents another signal or set of signals.
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Width
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Size of a vector signal.
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