David
Farruggio

MathGenie

cumsum

Cumulative sum

Syntax and Description

cumsum(A) returns the cumulative sum of A starting at the beginning of the first array dimension in A whose size does not equal 1.
  • If A is a vector, then cumsum(A) returns a vector containing the cumulative sum of the elements of A.
  • If A is a matrix, then cumsum(A) returns a matrix containing the cumulative sums for each column of A.
cumsum(A,dim) returns the cumulative sum of the elements along dimension dim. For example, if A is a matrix, then cumsum(A,2) returns the cumulative sum of each row.

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