MTM[numel] - number of elements in an array
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Calling Sequence
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numel(M)
numel(M, i, j, ...)
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Parameters
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M
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array
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i, j
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-
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array indices
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Description
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The numel(M) function returns the number of elements in the array, M, or the number of elements in the subreference M[i,j].
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numel does not perform bounds checking of the subreference index to assure that the index is valid. Therefore, numel(M,5,5) will still return 1, the size of a subreference of the form M[5,5], even for a 2 x 2 array, M.
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The special string, ":" can be used to denote the range of an entire dimension, for example, numel(M,":",1). Or, ":" by itself as in numel(M,":") can be used to denote the whole array, which is equivalent to numel(M).
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Examples
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