Looks like one of the appendices of my thesis about 25 years ago;-)pic.twitter.com/0l6gENcWAC
The trace of any diagonalizable matrix 𝑀 is the sum of its eigenvalues.
Exercise 
: Prove that this is true for 𝙖𝙣𝙮 𝑛 × 𝑛 matrix, regardless of diagonlizability.pic.twitter.com/FYVzQ3WYF1
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What did you study in grad school?
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diagonalisable matrices are dense in the set of all matrices and trace is a continuous function
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You read my mind!
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This the same as saying that the Traffic is independent of basis, right?
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Hahaha - Tr*
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You're getting into some of my old PhD territory... Theory of generators and invariants
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