Definify.com
Webster 1913 Edition
Quadratic
Quad-rat′ic
,Adj.
[Cf. F.
quadratique
.] 1.
Of or pertaining to a square, or to squares; resembling a quadrate, or square; square.
2.
(Crystallog.)
Tetragonal.
3.
(Alg.)
Pertaining to terms of the second degree;
as, a
. quadratic
equation, in which the highest power of the unknown quantity is a squareWebster 1828 Edition
Quadratic
QUADRAT'IC
,Adj.
Quadratic equation, in algebra, an equation in which the unknown quantity is of two dimensions, or raised to the second power; or one in which the highest power of the unknown quantity is a square.
Definition 2024
quadratic
quadratic
English
Alternative forms
- quadratick (obsolete)
Adjective
quadratic (not comparable)
- square-shaped
- (mathematics) of a polynomial, involving the second power (square) of a variable but no higher powers, as .
- (mathematics) of an equation, of the form .
- (mathematics) of a function, of the form .
Translations
of a class of polynomial of the form y = ax² + bx + c
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Noun
quadratic (plural quadratics)
- (mathematics) A quadratic polynomial, function or equation.
Usage notes
Not to be confused with quartic (“degree four”). Both derive ultimately from Proto-Indo-European *kʷetwóres (“four”), with quadratic coming from “four-sided”, hence “square, two-dimensional, degree two”.
Derived terms
Derived terms
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Related terms
See also
References
- ↑ “quadratique” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).