Reply To: english letter indicator Home › Forums › Nemeth Code for Math and Science › english letter indicator › Reply To: english letter indicator January 1, 2014 at 3:16 pm #22293 dworthingParticipant When deciding on the use of the English Letter Indicator, you treat the expression as if the grouping signs were not present. That would leave you with an unspaced "series" of letters: Fx or fx. Would the letter indicator be required in that case?