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The Lichtman Perception Paradox
A mathematician's take on Allan Lichtman's keys to the White House.
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Why do we row reduce? What IS a matrix?
What does the RREF tell us, and why do we spend so much time on it? Why do we define matrix multiplication the way we do?
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Introduction to Least Squares Part 2 (Electric Boogaloo)
Why the heck do we multiply by the transpose
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The Wonderful World of Projectors
They're cool, I promise!
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Constant Coefficient ODEs Made Simple with Linear Operators
No more guessing. The linear algebra perspective makes everything obvious.