Arithmetic operators

+  -  *  /

Basic arithmetic: Addition, subtraction, multiplication, and division. In division, the right operand cannot be zero.

+  -

Unary arithmetic: Set the sign of a number.

MOD

Modulus: Return the remainder after a number is divided by a divisor. The result has the same sign as the divisor. The right should be an integer; using a non-numeric value causes an error, and if you specify a real number, ColdFusion ignores the fractional part (for example, 11 MOD 4 is 3).

\

Integer division: Divide an integer by another integer. Use the backslash character (\) to separate the integers. The right operand cannot be zero. For example, 9\4 is 2.

^

Exponentiation: Return the result of a number raised to a power (exponent). Use the caret character (^) to separate the number from the power; for example, 2^3 is 8. Real and negative numbers are allowed for both the base and the exponent. However, any expression that equates to an imaginary number, such -1^.5 results in the string "-1.#IND. ColdFusion does not support imaginary or complex numbers.