Question

The Legendre symbol is positive when the top number is one of these values modulo the bottom number. For 10 points each:
[10h] Name these values that appear as solutions to their namesake equations in modular arithmetic. A number a is one of these values modulo p if a is congruent to a perfect square modulo p.
ANSWER: quadratic residues
[10e] This man was the first to prove the law of quadratic reciprocity. He also proved the constructability of the heptadecagon and apocryphally summed the integers from 1 to 100 in minutes as a child.
ANSWER: Johann Carl Friedrich Gauss
[10m] This mathematician is the namesake of a generalization of the Legendre symbol and also names a matrix of partial derivatives used when performing a change of variables.
ANSWER: Carl Gustav Jacob Jacobi
<MH, Other Science>

Back to bonuses

Summary

2023 ILLIAC (Cornell)2023-10-21Y415.0075%75%0%
2023 ILLIAC (Mainsite)2023-10-21Y815.0088%50%13%

Data

Cornell EarthCornell Fire0101020
Cornell WindColumbia Ly-α0000
RITRochester B0101020
Rochester ARochester C0101020