Numeric Expressions Numeric expressions express numeric computations, and are formed with numeric operands and numeric operators. The evaluation of a numeric operation yields a single numeric value. The term numeric includes logical data, because logical data is treated as integer data when used in a numeric context.
Numeric operators specify computations to be performed on the values of numeric operands.
The result is a scalar numeric value or an array whose elements are scalar numeric values. Unary operators operate on a single operand. Binary operators operate on a pair of operands. The plus and minus operators can be unary or binary. The exponentiation, multiplication, and division operators are binary operators.