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    Combination of variables, constants and operators makes an expression.

                                                Operator             Operator

                      Expression:       a           +          5         =          20

                                     Variable              Constant

                      Now learn about various types of operators.

                      Arithmetic Operators

                      These operators are used to do arithmetical operations.

                                                                                        Example
                          Operator           Name               Description           (x=7 and y=3)          Output

                                                           Adds values on either
                               +          Addition                                         x + y                10
                                                           side of the operator

                                                           Subtracts right hand
                               –          Subtraction      operand from left hand          x – y                 4
                                                           operand

                                                           Multiplies values on
                               *          Multiplication   either side of the              x * y                21
                                                           operator

                                                           Divides left hand
                               /          Division         operand by right hand           x / y             2.333333
                                                           operand

                                                           Divides left hand
                                                           operand by right hand
                              %           Modulus                                          x % y                 1
                                                           operand and returns

                                                           the remainder
                                                           Performs exponential
                              **          Exponentiation   (power) calculation on         x ** y                343
                                                           operands

                                                           Divides and returns the
                                          Floor or Integer
                              //                           integer part from the           x // y                2
                                          division
                                                           result

                      140   Premium Edition-VII

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