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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Theoretical high energy/particle physics (Utrecht University, The Netherlands, supervisor Gerard 't Hooft).
Jealous you worked under t’Hooft!
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