Operators

The following information describes how each operator (except for the prefix operators) acts on two terms, which can be symbols, strings, function calls, intermediate results, or subexpressions. Each prefix operator acts on the term or subexpression that follows it. Blanks (and comments) adjacent to operator characters do not affect the operator; thus, operators constructed from more than one character can have embedded blanks and comments. In addition, one or more blanks, where they occur in expressions but are not adjacent to another operator, also act as an operator. There are four types of operators:

• Concatenation
• Arithmetic
• Comparison
• Logical