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