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SHORT SIGN

To get auto
The ‘+’ operator when used with lists needs both the operands completion in IDLE:
to be of list type, otherwise it will produce an error. Ctrl + space

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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