Quadratic reciprocity

From Fresh Dictionary

Contents 1 English 1.1 Etymology 1.2 Noun 1.3 See also 2 External links

English

Etymology

Quadratic refers to the squaring in the question addressed.

Noun

Quadratic reciprocity (uncountable)

1. (number theory) Mathematical theorem relating the Jacobi symbol <math>\left({a \over b}\right)</math> to the inverted <math>\left({b \over a}\right)</math>, essentially relating the question of whether a is a square modulo b to the opposite question of whether b is a square modulo a (or modulo the prime factors).

See also

• Legendre symbol
• Jacobi symbol

External links