The pages on this site contain documentation for very old MS-DOS software,
purely for historical purposes.
If you're looking for up-to-date documentation, particularly for programming,
you should not rely on the information found here, as it will be woefully
out of date.
dFunction
Function
An element used in macro instructions to
manipulate text strings or modify numeric values.
For example, INT, LEN, and MID are functions. See
the Chapter 22, "Macros," in the Using Manual for
more information on functions.