Video Operators

Arithmetic Operators

• In order to manipulate and work with variables and values in C, we are have a number of operators at our disposal.

• Let's take a look at some of these now.

• In C we can add(+), subtract(-), multiply(*) and divide(/) numbers, as expected:

  • int x = y +1;
  • x = x * 5;

• We also have the modulus operator(%). witch give us the reminder when the number on the left of the operator is divided by the number on the right.

  • int m = 13 % 4; //m now is 1

• C also provides a shorthand way to apply an arithmetic operator to a single variable

  • x = x * 5;
  • x *=5

• This trick works with all five basic arithmetic operators. C provides a further shorthand for incrementing of decrementing a variable by 1:

  • x++;
  • x--;