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Here's a list of what I think are the 20 equations that built the modern world

1. Pythagorean Theorem \[{ a }^{ 2 } + { b }^{ 2 } = { c }^{ 2 }\] Discovered: c. 1800 BCE ...

Hello Brilliantians,

I have started a tutoring/book-selling organization called Quadrivium. Quadrivium also functions as a platform for spreading awareness and interest in science, math, education, and economics.

I will ...

How many ordered pairs of positive integers \( (m, n)\) satisfy

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Lectures on Quantum Mechanics

Linear Algebra

Differential Equations

Proof, Disproof, and Derivation

Classic Demonstrations

Puzzles From the Far East

Zheng's Physics Collection

Zheng's Mathematical Manual

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