Quadratic Gauss’s sum and quadratic reciprocity

Quadratic Gauss’s sum and quadratic reciprocity

0:00 start
7:03 definition of Quadratic Gauss’s sum
12:00 prove quadratic reciprocity

geometric proof:
Number theory Legendre Symbol 5 proves quadratic reciprocity:
https://youtu.be/vqLLwK5SrpA

Number theory Legendre Symbol(1) definition and prove Euler Criterion:
https://youtu.be/QVWS8DHdhqM

Number theory Legendre Symbol 2 proves Gauss’s Lemma:
https://youtu.be/QmYEDJinxBw

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