|Command||basic.- Operator/BASIC Program
Applicable release versions: AP, R83
|Category||BASIC Program (486)|
|Description||designates a subtraction operation, or to indicate a negative numeric value.|
|Syntax||num.expression - num.expression|
x = x - 1 Subtracts "1" from the contents of variable "x". x = x + (-z) Negates the contents of "z" and adds to the contents of "x". The result is placed in "x". amount = price - discount.amount Subtracts the contents of the variable "discount.amount" from the variable "price". Places the result in the variable "amount". amount = (unit.cost * qty) - discount.amount Subtracts the contents of variable "discount.amount" from the product of "unit.cost" and "qty". The parenthesis "()" used to group precedence are unnecessary due to default precedence. They are added for program clarity. counter = -1 This assigns the value, "-1", to the variable "counter".