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quadratic form

noun

, Mathematics.
  1. a polynomial all of whose terms are of degree 2 in two or more variables, as 5 x 2 − 2 xy + 3 y 2 .


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Word History and Origins

Origin of quadratic form1

First recorded in 1855–60
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Example Sentences

I then demonstrate algebraically that if the variable of interest, be it financial depth, doctors, or any other good or service that rises along with per capita income, is incorporated in a quadratic form into a regression of growth on per capita income, there will be a necessary but spurious finding that above a certain point more of the good or service in question causes growth to decline.

From Forbes

Solve by three methods—formula, factoring, and completing the square: Review equations in the quadratic form and solve: 2.

Equations in the quadratic form.

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