Intro to Dirac Notation and Complex Numbers
Dirac notation, sometimes called Bra Ket notation, is introduced here. Along with this is a quick overview of complex numbers, including the imaginary number i (square root of negative 1), the Euler formula (as well as Euler identity), unit circle, and complex conjugation. This is in order to introduce the idea of the row vector as Bra vector and the inner product of Bra and Ket vectors.
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