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July 12th, 2018, 02:23 AM  #1 
Newbie Joined: Apr 2011 Posts: 24 Thanks: 0  How to introduce quadratic residues?
What is the most motivating way to introduce quadratic residues? I would like some concrete examples which have an impact. This is for first year undergraduates doing an elementary number theory course. They have done Diophantine equations, solved linear congruences, primitive roots.


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introduce, quadratic, quadratic residues, residues 
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