Tandy 1000 Basic Reference Manual page 292

Chapter 10 I BASIC Keywords
Examples
renumbers the entire program, using an increment of 10. The
new number of the first line is
10.
RENUM
6 0 0 , 5 0 0 0 ,
1 0 0
RENUM
renumbers from Line 5000
to the end of the program. The first
renumbered line becomes
600,
and an increment of
100
is used
between subsequent lines.
RENUM 1 0 0 , , 1 0 0
renumbers the entire program, starting with a new line number
100, and incrementing by 100s. Notice that the commas must be
retained even though the middle argument is not used.
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