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Matrix trace isn't just summing the diagonal | Lie groups, algebras, brackets #5

What is Lie theory? Here is the big picture. | Lie groups, algebras, brackets #3

What is e and ln(x)? (Euler's Number and The Natural Logarithm)

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String Theory

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Why can't you multiply vectors?

What does the second derivative actually do in math and physics?

Lie algebras visualized: why are they defined like that? Why Jacobi identity?

How Imaginary Numbers Were Invented

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What's so special about Euler's number e? | Chapter 5, Essence of calculus

Why study Lie theory? | Lie groups, algebras, brackets #1

The most beautiful equation in math, explained visually [Euler’s Formula]

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What is the i really doing in Schrödinger's equation?

But what is the Fourier Transform? A visual introduction.