Eli Bendersky's
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Calculating the norm of a complex number
In this quick post I'll dispel a common confusion in the basic math
of complex numbers. It's often useful to calculate the norm-square (also
known as absolute square)
of a complex number z. This norm-square is denoted |z|^2. One
could naively expect that:
[|z|^2=zz]However, that's false …
