visual-foxpro Operators Numeric Operators

Example

Numeric operators are the easiest and almost the same as in other languages.

• +, -, * and /. Addition, subtraction, multiplication and division operators (in VFP there is no integer division, you can convert a result to integer with functions INT(), CEILING() and FLOOR()).
• % Modulus operator.
• ^ and **. Power of operator(s). They both do the same thing.
• (). Grouping operators.
• Operators have precedence. The order is:

   ( )
   ^ (or **) 
   / and *
   - and +

    ? 10 / 5 + 2 && Outputs 4
    ? 2 + 10 / 5 && Outputs 4 as well. Division has precedence.
     
    * Both multiplication and division have same precedence
    * They would be interpreted from left to right.
    ? 4 * 5 / 2 + 5 && Outputs 15
    * Use parentheses whenever you are in doubt or want to be explicit
    ? ( (4 * 5) / 2 ) + 5 && Outputs 15. Explicit grouping of operations

    ? 4 * 5^2 && ^ has precedence, this is same as 4 * (5^2) = 100.
    ? (4 + 5)^2 && Using parentheses we say add 5 to 4 (9) and then square = 81.