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In this program underline is turned on in line 20 with (ESC)
<<
–“ 1, and then off in line 40 with (ESC) “-” O.There’s a new
aspect to this program, though. The semicolons at the end of the
first three lines told BASIC that those lines were to be con-
tinued. Therefore, BASIC didn’t send a carriage return and line
feed at the end of those lines. We just did this to illustrate that
all these control codes can be used in the middle of a line. It’s
easy to underline or italicize only part of a line.
■ Superscripts and subscripts
Your printer can print in two different heights of characters.
The smaller characters are called superscriptsand subscrifltsand
are half the height of normal characters. Superscriptsprint even-
ly with the tops of regular printing while subscriptsprint evenly
with the bottom of regular printing. They are frequently used to
reference footnotes, and in mathematical formulas.
Table 4-4 has the codes for using superscripts and subscripts.
Table 4-4
Superscripts and subscripts commands
Try this program to see them work:
10 ‘ Demo
20 LPRINT
30 LPRINT
40 LPRINT
50 LPRINT
60 LPRINT
70 LPRINT
80 LPRINT
90 LPRINT
of superscripts and subscripts
“Look! “ ;
CHR$(27) ; “SO”;
“SUPERSCRIPTS“;
CHR$(27) ; “T”;
!,& ,,;
CHR$(27) ; “S1” ;
“SUBSCRIPTS“;
CHR$(27); “T”;