Page 148 - TrackpadV5.1_class7
P. 148

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            2.3333335
                                                       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.




                  146   Pro (V5.1)-VII
   143   144   145   146   147   148   149   150   151   152   153