Ekene Agunechemba

Hey young coder! 👋 Have you ever counted your toys? Or maybe measured how much juice is in your cup? Well, guess what? You’re already using numbers — and Python LOVES numbers too! 💻🎉

Let’s dive into the wonderful world of numbers in Python, where we meet three amazing types of numbers: 🧍‍♂️The Whole Ones, 🌊The Splashy Floaters, and 🧙‍♂️The Magical Complex Guys.

🔢 1. Integer Numbers – The Whole Number Heroes 💪

These are complete numbers with no dots, no decimals, and no magic! Just solid, steady, countable numbers like:

  • 1 apple 🍎
  • 100 stars ⭐
  • 0 homework 😁

In Python, these are called integers and we write them like this:

age = 8

Or if you want to be fancy:

age = int(8)

Want to ask Python, “Hey, is this an integer?”:

type(age) == int  # Python will answer: True!

✅ int means “integer” — a whole number.

🌊 2. Floating Point Numbers – The Splashy Floaters 💦

These are numbers with a dot. Like:

  • 3.14 (Pi!)
  • 0.1 (a small part of something)
  • 100.0 (looks big, but still has a dot)

Python calls them floats. They like to float between whole numbers!

fraction = 0.1

Or use the float function:

fraction = float(0.1)

Ask Python what type this is:

type(fraction) == float  # Python says: True!

✅ float means it has a decimal point — like numbers floating in water!

🧙‍♂️ 3. Complex Numbers – The Magical Number Wizards ✨

Now, this part is super cool. Complex numbers have two parts:

  • A real part (like the numbers you already know)
  • An imaginary part (with a magical twist using j!)

It’s like a number wearing a wizard’s hat! 🧙‍♂️

magic_number = 2 + 3j

Or even like this:

magic_number = complex(2, 3)

Now you can ask Python to tell you the secret parts:

magic_number.real  # Python whispers: 2.0
magic_number.imag  # And then says: 3.0

To check if it’s really magical:

type(magic_number) == complex  # Python confirms: True!

✅ complex = Real part + Magical j part. 🪄

🧠✨ Quick Recap Table

Here’s your mini cheat sheet:

🧪 Number Type 🔍 Example 🧑‍💻 Python Calls It
Whole Number 8 int
Decimal or Dotty 0.5 float
Magical Wizard 2 + 3j complex

📝🎯 5 Fun Review Questions!

Let’s test your wizard brain, junior Pythonista! 💡👇

  1. What type of number is 42 in Python? a) float b) int c) complex

  2. Which of these is a float? a) 10 b) 10.0 c) 10j

  3. How do you write a complex number with real part 5 and imaginary part 2? a) 5 + 2j b) 5.2 c) complex(5.2)

  4. What does type(3.14) return? a) int b) float c) complex

  5. What will complex_number.real return if you write complex_number = 7 + 4j? a) 7 b) 4 c) 4j

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