Unlock the World of Numbers & Code
Plenty of π offers interactive tools and engaging lessons to make learning math and computer science fun and accessible for everyone.
Featured Tools & Lessons
Python Foundations
Embark on your Python journey! Learn the fundamentals with interactive lessons, a code sandbox, and gamified challenges.
Binary Converter Game
Master binary numbers with our interactive 8-bit and 16-bit converter game. Toggle bits, see instant decimal and hex conversions, and test your skills in game mode!
Explore More
Discover a range of interactive resources to boost your knowledge in math and computer science.
Graphify Calculator
Plot multiple functions, explore graphs with interactive zoom/pan, and visualize equations in real-time with our advanced graphing calculator.
JavaScript Essentials
Dive into JavaScript! Interactive lessons, a live code sandbox, and practical exercises to build your web development skills.
Fourier Series Visualizer
Discover how complex periodic functions can be represented as a sum of simple sine waves. Adjust the number of terms and see the approximation change in real-time with animated epicycles.
Interactive Unit Circle
Explore the unit circle dynamically. Drag the angle, see radians, degrees, and trigonometric values (sin, cos, tan) update in real-time. Visualize the linked sine wave.
Prime Tester
Test numbers for primality, find their factors, and explore sequences of prime numbers. A great tool for understanding number theory basics.
Math Battle Game
Challenge your mental math skills! Solve a variety of arithmetic and logic problems against the clock. Improve your speed and accuracy.
Hex Boxes Challenge
Learn hexadecimal conversion by converting decimal numbers (0-255) to two-digit hex values. Select digits from a grid and test your understanding in challenge or learn mode.
Fraction Duel
Challenge your fraction arithmetic! Solve expressions by choosing the correct simplified answer from multiple choices. Difficulty increases with each turn.
Python: Output Match
Match Python code snippets to their correct output. A fun way to test your understanding of Python execution.
Python: Syntax Spotter
Can you spot the syntax errors? Sharpen your Python debugging skills by identifying mistakes in code.
Python: Debug It!
Fix broken Python code! Apply your knowledge to debug real-world-like scenarios and make the code run.
JS: Output Match
Match JavaScript code snippets to their correct console output. Test your JS execution knowledge.
JS: Syntax Spotter
Spot syntax errors in JavaScript code. A great way to improve your attention to detail.
JS: Debug It!
Fix buggy JavaScript code! Use the in-browser sandbox to test and correct the snippets.