quadratic form


Definition of quadratic form

: a homogeneous polynomial (such as x2 + 5xy + y2) of the second degree

Examples of quadratic form in a Sentence

Recent Examples on the Web There are three ways to cut a cube in half — making a front-back, left-right or top-bottom division — so the cube generated three quadratic forms. Quanta Magazine, "The Musical, Magical Number Theorist," 12 Aug. 2014 These three forms, Bhargava discovered, add up to zero — not with respect to normal addition, but with respect to Gauss’ method for composing quadratic forms. Quanta Magazine, "The Musical, Magical Number Theorist," 12 Aug. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quadratic form.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of quadratic form

1853, in the meaning defined above

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Time Traveler for quadratic form

Time Traveler

The first known use of quadratic form was in 1853

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Cite this Entry

“Quadratic form.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadratic%20form. Accessed 8 Jul. 2020.

More from Merriam-Webster on quadratic form

Rhyming Dictionary: Words that rhyme with quadratic form

Britannica.com: Encyclopedia article about quadratic form

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