Cumsum

cumsum(x)

x is a matrix

If x is a vector, then cumsum(x) returns a vector containing the cumulative sum of the elements of x. If x is a matrix, then cumsum(x) returns a matrix containing the cumulative sums for each column of x.

cumsum(x, n)

x is a matrix,

n is either 1 or 2

cumsum(x, n) returns the cumulative sum of the elements along dimension dim. cumsum(x,1) returns the cumulative sum of each column. cumsum(x,2) returns the cumulative sum of each row.

Input

Output

cumsum([1, 2, 3, 4])

cumsum([1; 2; 3; 4])

cumsum([1, 3, 4; 2, 4, 6])

cumsum([1, 3, 4; 2, 4, 6], 1)

cumsum([1, 3, 4; 2, 4, 6], 2)