@Carl Love Thank you!

@Carl Love sure:


MARK(1,2,3,4);           [-2,1,3/2,-1/2]



MARK(1,0,0,1);          [1,0,0,1]

MARK(1,0,1,0);
                              Error, (in MARK) numeric exception: division by zero

@Carl Love Thanks you!  Can i bother you though for a slight expansion on how to use it? Im very new to maple.