Arithmetic operators

The +, -, *, /, (+), (-) operators create properties that implement arithmetic operations.

Syntax

expression1 + expression2
expression1 - expression2
expression1 * expression2
expression1 / expression2
expression1 (+) expression2
expression1 (-) expression2
- expression1

Description

The binary operators each take two operands and associate left to right, while the unary minus takes a single operand. The evaluation order relative to other operators follows operator priority.

There are no dedicated operators for the remainder of division, integer division, or exponentiation — these operations are performed by the mod[…, …], divideInteger[…, …], and power[…, …] properties of the system module Utils.

Parameters

• expression1, expression2

  Expressions whose values will be arguments for arithmetic operators. The operands of (+) and (-) must be numeric: these operators are not defined for strings, date/time values or logical values. Such an expression is not checked when the module is loaded, and the error is raised when a query reading the property is executed. To concatenate strings while skipping NULL operands, use the CONCAT operator.

Examples

sum(a, b) = a + b;
transform(a, b, c) = -a * (b (+) c);
remainder(a, b) = mod(a, b); // remainder of division — a property of the Utils module