Python Basics

1. Sum using the + operator

2. Multiply

3. divide

4. subtract

5. Complex number where iota is denoted with j

6. Different ways of declaring variables.

7. a,b,c,d = 1,2,3,4

8. special characters in variables @,%,-,+

9. Can use an underscore for it though. _a is a valid variable name

10. Data types:

    a. int

    b. float

    c. boolean or bool

    d.string and various ways of declaring a string, concatenation a1 + a2

11. Type casting an int to string

12. Type casting from string to int is not valid

13. Taking input from the user.

14. Typecasting the input() function

15. Indexing in a string, negative indexing

16. Slicing in a string

17. Jum/Step in slicing

18. Reverse of a string

19. Item reassignment - mutability and immutability

Questions

1. Declare two variables, x and y, and assign them integer values. Swap the values of these variables without using any temporary variable.

2. Create a program that calculates the area of a rectangle. Take the length and width as inputs from the user and store them in variables. Calculate and display the area.

3. Write a Python program that converts temperatures from Celsius to Fahrenheit. Take the temperature in Celsius as input, store it in a variable, convert it to Fahrenheit, and display the result.

4. Given a string, reverse the order of characters using string slicing and print the reversed string.