Variable names

Variable names must meet the following rules:

• The first character is a lower case letter in the range [a-z], or an upper case letter in the range [AZ].

• The subsequent characters are either lower case letters in the range [a-z], upper case letters in the range [A-Z], or numerals in the range [0-9].

• The name is not a reserved word included in the list of formula operators.

  The following are examples of illegal names:

  Illegal variable names

  Illegal variable names example	Explanation
  CET(976)	Parentheses characters () present in identifier
  C04P-	Minus sign character - present in identifier
  D1160 BP	Space character present in identifier
  NOT	Identifier names a reserved word.