The .set chapter sets the options for chapter headings. This command must precede any .chapter commands.
.set chapter {options}
.sch
options | b | Boldface. |
i | Italics. | |
u | Underline. | |
s | Suppresses section numbers. The s option also suppresses the word Chapter followed by the chapter number from being output above the chapter heading. The chapters are still numbered internally, so the .prefix page command can still be used. | |
r | Roman numeral chapter numbers. |