🏠 Adventure 11 — Taylor Series
Taylor series as a ‘function builder’: use derivatives to construct ex, sin(x), and cos(x), then connect to Euler’s identity.
🎯 What you will learn
- Derivatives give the building blocks of a function at a point.
- Taylor series uses those pieces to reconstruct the entire function.
- Special functions like ex, sin(x), and cos(x) reveal deep patterns—and connect through Euler’s identity.
🎥 Watch the Video
Next, on YouTube watch 3Blue1Brown — Essence of Calculus, Chapter 5
What's so special about Euler's number e? Watch how the number e and its series come from simple patterns in change. This video shows how repeating derivatives build powerful functions—and why e
x is so special.
📖 1) Read / Listen: Story
✏️ 2) Do the Adventure Activity
- ✏️ Open: Adventure 11 — Activity Page
Fill in tables to construct ex, sinx, and cosx step by step from derivatives. Then combine them to uncover one of the most beautiful results in math: Euler’s identity.
📈 3) Charts - for printing