.. FOR MX-80 PRINTER WITH GRAFTRAX INSTALLED
..
.WH HEX 1B 32 . ; 6 lines/inch is standard
.fr 2 hex 1b 33 12 . ; 18/216" = halfline spacing
.LS 1
.RM 60
.OW 60
.he //THE MIDDLE/PAGE #/
.FO /PAGE #//BOTTOM/
.sc #
.fi
	An involved example of the use of printer controls
would be to create a 3 by 3 matrix:
.sp 1
MATRIX = ^+^+^(|1#2#3|^)^-^-|4#5#6|^)^-^-|7#8#9|^+^+

.nf
which should produce (with a half-spacing) printer:

         |1 2 3|
MATRIX = |4 5 6|
         |7 8 9|