Arithmetic Operators

Arithmetic operators, which take real or integer operands, include +, -, *, /, div, and mod. Binary Arithmetic Operators

 Operator Operation Operand Types Result Type Example + addition integer, real integer, real X + Y - subtraction integer, real integer, real Result - 1 * multiplication integer, real integer, real P * InterestRate / real division integer, real real X / 2 div integer divisioninteger integer Total div UnitSize mod remainder integer integer Y mod 6 Unary arithmetic operators Operator Operation Operand Type Result Type Example + sign identity integer, real integer, real + 7 - sign negationinteger, real integer, real -X

The following rules apply to arithmetic operators.

• The value of x / y is of type Extended, regardless of the types of x and y. For other arithmetic operators, the result is of type Extended whenever at least one operand is a real; otherwise, the result is of type Int64 when at least one operand is of type Int64; otherwise, the result is of type

Integer. If an operand's type is a subrange of an integer type, it is treated as if it were of the integer type.

• The value of x div y is the value of x / y rounded in the direction of zero to the nearest integer.
• The mod operator returns the remainder obtained by dividing its operands. In other words, x mod y = x (x div y) * y.
• A runtime error occurs when y is zero in an expression of the form x / y, x div y, or x mod y. 