| 释义 |
quadratic
quad·rat·ic Q0007300 (kwŏ-drăt′ĭk)adj. Mathematics Of, relating to, or containing quantities of the second degree.
[From quadrate.]
quad·rat′ic n.quad·rat′i·cal·ly adv.quadratic (kwɒˈdrætɪk) mathsn (Mathematics) Also called: quadratic equation an equation containing one or more terms in which the variable is raised to the power of two, but no terms in which it is raised to a higher poweradj (Mathematics) Also: quadratical of or relating to the second powerquad•rat•ic (kwɒˈdræt ɪk)
adj. 1. Algebra. involving the square and no higher power of the unknown quantity; of the second degree. n. 2. a quadratic polynomial or equation. [1650–60] quad•rat′i•cal•ly, adv. quad·rat·ic (kwŏ-drăt′ĭk) Relating to a mathematical expression containing a term of the second degree, such as x2 + 2. ♦ A quadratic equation is an equation having the general form ax2 + bx + c = 0, where a, b, and c are constants. ♦ The quadratic formula is x = [-b ± √(b2 - 4ac)]/2a It is important in algebra, where it is used to calculate the roots of quadratic equations.Thesaurus| Noun | 1. | quadratic - an equation in which the highest power of an unknown quantity is a squarequadratic equationequation - a mathematical statement that two expressions are equal | | 2. | quadratic - a polynomial of the second degreequadratic polynomialmultinomial, polynomial - a mathematical function that is the sum of a number of terms | | Adj. | 1. | quadratic - of or relating to or resembling a square; "quadratic shapes" | | 2. | quadratic - of or relating to the second power; "quadratic equation" |
Translations
quadratic
quadratic, mathematical expression of the second degree in one or more unknowns (see polynomialpolynomial,
mathematical expression which is a finite sum, each term being a constant times a product of one or more variables raised to powers. With only one variable the general form of a polynomial is a0xn+a1x
..... Click the link for more information. ). The general quadratic in one unknown has the form ax2+bx+c, where a, b, and c are constants and x is the variable. A quadratic equation ax2+bx+c=0 always has two rootsroot,
in mathematics, number or quantity r for which an equation f(r)=0 holds true, where f is some function. If f is a polynomial, r is called a root of f; for example, r=3 and r
..... Click the link for more information. , not necessarily distinct; these may be real or complex (see numbernumber,
entity describing the magnitude or position of a mathematical object or extensions of these concepts. The Natural Numbers
Cardinal numbers describe the size of a collection of objects; two such collections have the same (cardinal) number of objects if their
..... Click the link for more information. ). The quadratic formula
gives the roots of any quadratic equation in terms of its coefficients a, b, and c. The expression b2−4ac is called the discriminant and vanishes when the two roots coincide. If a, b, and c are real and the discriminant is not less than zero, the roots are real.quadratic[kwä ′drad·ik] (mathematics) Any second-degree expression. quadratic Maths1. an equation containing one or more terms in which the variable is raised to the power of two, but no terms in which it is raised to a higher power 2. of or relating to the second power quadratic
Related to quadratic: quadratic equation, quadratic formulaSynonyms for quadraticnoun an equation in which the highest power of an unknown quantity is a squareSynonymsRelated Wordsnoun a polynomial of the second degreeSynonymsRelated Words |