Reply To: flowchart Home › Forums › Nemeth Code for Math and Science › flowchart › Reply To: flowchart June 22, 2011 at 11:52 pm #20925 betty.marshallParticipant According to Computer Braille Code Supplement Flowchart Design for Applicable Braille Codes, two-way arrows are to be transcribed as two separate arrows, one in each direction. (III.G.5.) (page 13)