quadratic integer
nounEtymology Blend of quadratic + algebraic integer. The idea of integer here is that if the coefficient of the x² term is set to 1 (i.e., if the polynomial is made monic), the other coefficients are integers.
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Mathematics, Sciences A number (real or complex) which is a solution to an equation of the form x²+Bx+C=0 for some integers B and C. For example 42, or 2+3i, or 1+√/2.
- Hypernyms
- algebraic number, algebraic integer
- Hyponyms
- integer, rational integer, Gaussian integer, Eisenstein integer, phi, golden ratio