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                             LIBRARIES IN PYTHON

                      A library is a collection of prewritten code for specific functions. In Python, a library is a
                      set of interconnected modules. A module is a Python file containing functions, classes and
                      variables that can be reused across multiple programs, making code modular and easier
                      to manage.

                      Following are the advantages of using Libraries:

                          Saves time: No need to build everything from scratch.

                          Reusability: Achieve more with fewer lines of code, improving modularity.

                          Simplifies  complex tasks:  Users can  call tested  and  optimised  methods  without  knowing
                         internal details.

                      IMPORTING A MODULE

                      A library contains multiple interrelated modules. To use the functionality of a module, you must
                      import it using the import statement. The syntax is as follows:

                      import module_name

                      MATH MODULE
                      Python’s math module provides a wide range of functions for mathematical operations. Some of

                      the most commonly used methods include:

                          math.ceil(): It rounds a number up to the nearest integer.
                          math.factorial(): It returns the factorial of a positive integer.

                          math.floor(): It rounds a number down to the nearest integer.

                          math.fmod(): It returns the floating-point remainder when x is divided by y.

                          math.gcd(): It returns the greatest common divisor of two integers.

                          math.pow(): It returns the value of x to the power of y.

                          math.sqrt(): It returns the square root of a number.

                      The math module must be imported before its functions can be used.

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