code: function() {
      var m = 0, ni = this.elements.length, ki = ni, i, nj, kj = this.elements[0].length, j;
      do { i = ki - ni;
        nj = kj;
        do { j = kj - nj;
          if (Math.abs(this.elements[i][j]) > Math.abs(m)) { m = this.elements[i][j]; }
        } while (--nj);
      } while (--ni);
      return m;
    }
docs: Returns the (absolute) largest element of the matrix