Parameters

 

x

   A character, such as a left parenthesis or bracket, that you can
   specify to precede the number or letter. You must enclose the
   character in quotation marks (" ") or apostrophes (' ').
 

y

   One of the following one- or two-letter codes:

   Code  Form of Sequence and Case

   D     Decimal numbers
   O     Octal numbers
   H     Hexadecimal numbers
   RU    Roman uppercase numerals
   RL    Roman lowercase numerals
   RM    Roman mixed case numerals - only first numeral is uppercase
   LU    Letters, uppercase
   LL    Letters, lowercase
   LM    Letters, mixed case - only first letter is uppercase
 

z

   A character, such as a right parenthesis or bracket, that you
   can specify to follow the number or letter. You must enclose the
   character in quotation marks (" ") or apostrophes (' ').