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RCUMSUM cumulative sum of elements, restarted after every zero.

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 RCUMSUM cumulative sum of elements, restarted after every zero. For vectors, RCUMSUM(X) is a vector containing the cumulative sum of the elements of X, with the summation restarting after a zero is encountered. For matrices, RCUMSUM(X) is a matrix the same size as X containing the cumulative restarted sums over each column. For N-D arrays, RCUMSUM(X) operates along the first non-singleton dimension.
RCUMSUM(X,DIM) works along the dimension DIM.

Also included is RCUMPROD.

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MATLAB release MATLAB 7.5 (R2007b)
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