7.9.  Conversion Routines

     The  following  routines  perform	conversions  between
strings	and numbers.

$str	( $str num ) ->	Returns	a volatile string which	con-
	tains the ASCII	representation of num.

	Example:
		     ($str 3) is the string "3"



$num	( $num str ) ->	Returns	the numeric value of str.

	Example:
		     ($num "234") is the number	234



$ord	( $ord str ) ->	Returns	the ASCII code of the  first
	character in str.

	Example:
		     ($ord "ABC") is 65



$chr	( $chr num ) ->	Returns	a volatile string which	con-
	tains  exactly	one  character,	 whose ASCII code is
	num.

	Example:
		     ($chr 97) is the string "a".