  sum
  Builtin Function



      SSyynnooppssiiss
        Sum the elements of a matrix.

      SSyynnttaaxx
        sum ( _A )

      DDeessccrriippttiioonn
        Sum computes the sum of a matrix. The return object is a row
        matrix which contains the sum of each column of the input.

        If the input is a vector (row-matrix) then the sum of the
        elements is returned.

















































