= Quadratic Residues by Ben Lynn
{c}
{tag=Work by Ben Lynn}
Online text: https://crypto.stanford.edu/pbc/notes/numbertheory/qr.html
By <Ben Lynn>. Stanford hosts the author's PBC Notes; it is not an institutional author. The inspected page is undated.
Cited passages: “Quadratic Residues”, opening definition and Euler criterion discussion; “The Legendre Symbol”, three values, odd-prime restriction, multiplication and square factors. The opening square-residue convention includes zero.
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