regress/roff/nr/incr.out_ascii

   1 NR-INCR(1)                  General Commands Manual                 NR-INCR(1)
   2
   3 N\bNA\bAM\bME\bE
   4        nr-incr - increment a number register by accessing it
   5
   6 D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
   7        Roff can count by merely accessing a number register: 1 2 3
   8
   9        It can also change the step size: 5 7 9
  10
  11        It can also count down: 6 3 0 -3
  12
  13        Down in negative steps is up: -1 1 3 5
  14
  15        Go to some other value, then continue incrementing with an unchanged
  16        (negative) step size: 40 38 36
  17
  18 OpenBSD                         April 10, 2018                      NR-INCR(1)