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learnpython24-(Python Variables, Constants and Literals)

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  Python Variables, Constants and Literals In this tutorial, you will learn about Python variables, constants, literals and their use cases. Python Variables A variable is a named location used to store data in the memory. It is helpful to think of variables as a container that holds data that can be changed later in the program. For example, number = 10 Here, we have created a variable named  number . We have assigned the value  10  to the variable. You can think of variables as a bag to store books in it and that book can be replaced at any time. number = 10 number = 1.1 Initially, the value of  number  was  10 . Later, it was changed to  1.1 . Note : In Python, we don't actually assign values to the variables. Instead, Python gives the reference of the object(value) to the variable. Assigning values to Variables in Python As you can see from the above example, you can use the assignment operator  =  to assign a value to a variable...
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learnpython24-(Python Program to Find Factorial of Number Using Recursion)

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  Python Program to Find Factorial of Number Using Recursion In this program, you'll learn to find the factorial of a number using recursive function. To understand this example, you should have the knowledge of the following  Python programming  topics: Python if...else Statement Python Functions Python Recursion The factorial of a number is the product of all the integers from 1 to that number. For example, the factorial of 6 is  1*2*3*4*5*6 = 720 . Factorial is not defined for negative numbers and the factorial of zero is one, 0! = 1. Source Code # Factorial of a number using recursion def recur_factorial (n) : if n == 1 : return n else : return n*recur_factorial(n -1 ) num = 7 # check if the number is negative if num < 0 : print ( "Sorry, factorial does not exist for negative numbers" ) elif num == 0 : print ( "The factorial of 0 is 1" ) else : print ( "The factorial of" , num, "is" , recur_fac...
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learnpython24-(Dictionary & Its Functions Explained)

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