cumprod

Cumulative product along a dimension.

Syntax

B = cumprod(A)
B = cumprod(A, dim)

Description

Returns an array of the same size as A where each element is the running product from the start of its row/column up to that position. With no dimension argument, accumulates along the first non-singleton dimension.

Examples

cumprod(1:5)                % [1 2 6 24 120]   factorials
cumprod([1 2; 3 4])         % [1 2; 3 8]   column cumulative products

See also

• prod — Product of array elements.
• cumsum — Cumulative sum along a dimension.