Reply To: Graph Coordinates within Grouping Signs Home › Forums › Nemeth Code for Math and Science › Graph Coordinates within Grouping Signs › Reply To: Graph Coordinates within Grouping Signs November 15, 2009 at 4:56 pm #20080 Chris ClemensKeymaster Thank you so much. I absolutely agree with you regarding the internal comma. I have been putting a space after the comma all along and for some reason today I started questioning it. Thanks for siteing the rule. I now have it flagged in my book.