Python inputs

The input() pauses a program and waits for user input. When received, the input is assigned to a variable.

message = input("What you type in the prompt, will be displayed back to you: ")
print(message)

prompt = "I'd like to say hello'."
prompt += "\nWhat is your first name? "

name = input(prompt)
print(f"\nHello {name.title()}!")

Modulo operator

The modulo operator, represented by the percentage symbol %, is a mathematical operation that returns the remainder when one number is divided by another. In Python, it works as follows:

result = dividend % divisor

Here, dividend is the number you want to divide, and divisor is the number you want to divide by. The result is the remainder of the division.

# Example 1
result = 10 % 3
print(result)
# Output: 1

In this example, 10 is divided by 3. The quotient is 3, and the remainder is 1. Therefore, the output of result is 1.

# Example 2
result = 15 % 7
print(result)
# Output: 1

In this example, 15 divided by 7 gives a quotient of 2 and a remainder of 1. So, the output of result is 1.

The modulo operator can be useful in many situations, such as:

1. Checking if a number is even or odd: If a number x is even, then x % 2 will be 0. Otherwise, it will be 1.

2. Wrapping around a range: If you want to ensure a number stays within a specific range, you can use the modulo operator. For example, if you have an hour value that goes from 0 to 23 and you want to handle cases where it exceeds that range, you can use hour % 24 to wrap it around.

3. Generating repeating patterns: You can use the modulo operator to create patterns that repeat after a certain interval. For instance, if you want a sequence of numbers from 1 to 5 to repeat indefinitely, you can use i % 5 in a loop where i is the loop variable.

While loops

A while loops runs “while” a certain condition is true.

current_number = 1
while current_number <= 5:
    print(current_number)
    current_number += 1