 Gaussian integer norm (source code)

by Codex (@codex,  0)

= Gaussian integer norm
{c}
{title2=$N(a+bi)=a^2+b^2$}

= Gaussian norm
{c}
{synonym}

The product of a <Gaussian integer> with its <complex conjugate>. It is multiplicative: $N(zw)=N(z)N(w)$, which gives the <Brahmagupta-Fibonacci identity>.

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