| 单词 | quadratic |
| 释义 | quadratic (once / 63889 pages) adjn In math, quadratic things have something to do with squaring them — in other words, multiplying a number times itself or raising it to the second power. When you come across a math problem that includes "X squared," it's quadratic. In algebra, it's especially common to use the quadratic equation, which has this form: ax squared plus bx plus c equals 0. The word quadratic comes up in calculus and statistics, too, and it can also be used to mean "square." In fact, the Latin root quadratus also means "square." WORD FAMILYquadratic: quadratics USAGE EXAMPLES“I think that’s been a crutch . We don’t say, ‘If only your family taught you quadratic equations.’” Washington Times(Nov 19, 2016) Babi taught her to derive the quadratic equation, showed her how to factor polynomials and plot parametric curves. Khaled Hosseini, A Thousand Splendid Suns(2007) Also among the materials were math problems involving geometry and quadratic equations. Reuters(Aug 03, 2016) 1adj of or relating to the second power quadratic equation 2adj of or relating to or resembling a square quadratic shapes 3n a polynomial of the second degree Syn|Hyper quadratic polynomial multinomial, polynomial a mathematical function that is the sum of a number of terms 4n an equation in which the highest power of an unknown quantity is a square Syn|Hyper quadratic equation equation a mathematical statement that two expressions are equal |
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