Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
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
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