Expression order

The order in which the expression is calculated is determined by the operator precedence.

• Brackets e.g. ( and )
• Exponents e.g. 2 ^ 2
• Division e.g. 4 / 2
• Multiplication e.g. 4 * 2
• Addition e.g. 4 + 2
• Subtraction e.g. 4 - 2

This example demonstrates the operator precedence taking affect in two expressions.

valueA as integer = 0
valueB as integer = 0


valueA = 2 + 10 / 2
valueB = ( 2 + 10 ) / 2


do
	print ( valueA )
	print ( valueB )
	

	sync ( )
loop

In the case of valueA the expression being assigned to it has the division calculated first, so 10 / 2 = 5, which is then added to 2 and assigned to valueA. Therefore this variable has a value of 7.

valueB has used brackets to force the addition to be calculated first. In this instance the result of 2 + 10 = 12 is divided by 2 giving the variable a value of 6.