Useful mathematics and formulas for quantum engineering

Trig identities

Unit circle

Block sphere

<|> = <Bra|Ket> Notation

Bra ket notation is used to identify row and column vectors, with he

<bra| being a row vector and the |ket> being a column vector

Statistics

Types of numbers

Complex and “imaginary” numbers

a complex number is a combination of real and imaginary numbers.