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adjective
MathematicsInvolving the second and no higher power of an unknown quantity or variable.
‘a quadratic equation’- ‘Find the 2 roots and a continued fraction for a root of these quadratic equations.’
- ‘If f = 0, then the quartic in y is actually a quadratic equation in the variable y 2.’
- ‘Smith also extended Gauss's theorem on real quadratic forms to complex quadratic forms.’
- ‘He was able to use his methods to prove many results in the theory of quadratic forms and number theory.’
- ‘In 1826 Cauchy, in the context of quadratic forms in n variables, used the term ‘tableau’ for the matrix of coefficients.’
noun
A quadratic equation.
- ‘The sparseness of the quadratics is what is important here.’
- ‘This is certainly possible and the Babylonians' understanding of quadratics adds some weight to the claim.’
- ‘The thought that quadratics are now seen as ‘high brow’ really does, once again, make me despair.’
- ‘For that matter quadratics aren't all that tough.’
- ‘Historically, imaginary numbers first came to light when trying to solve cubic equations, rather than quadratics.’
Origin
Mid 17th century: from French quadratique or modern Latin quadraticus, from quadratus made square past participle of quadrare (see quadrate).
Pronunciation:
Further reading
6 punctuation marks you might be using incorrectly
Read moreWe take a look at several popular, though confusing, punctuation marks.
An A-Z of country name origins
Read moreFrom Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.