V2EX monomial

Monomial

释义 Definition

单项式(数学):只由一个项组成的代数式,通常是一个常数与若干变量幂的乘积,例如 \(7x^2y\)、\(-3a\)、\(5\)。

发音 Pronunciation

/mnomil/

例句 Examples

A monomial can be a constant like 5.
单项式也可以是像 5 这样的常数。

In algebra, simplifying a polynomial often starts by combining like terms and organizing the monomials by degree.
在代数中,化简多项式常常从合并同类项开始,并按次数对单项式进行整理。

词源 Etymology

monomial 由前缀 **mono-**(“单一、一个”,源自希腊语)和 -nomial(与“项/名称”相关,常见于 binomialpolynomial 等数学词中)构成,字面意思接近“单个项的(表达式)”,因此在代数里指“只含一个项的代数式”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Ideals, Varieties, and Algorithms(Cox, Little, O’Shea)在 Grbner 基与单项式序等内容中频繁出现 monomial
  • Abstract Algebra(David S. Dummit & Richard M. Foote)在多项式环与代数结构讨论中会用到 monomial
  • Algebra(Michael Artin)涉及多项式与代数运算时常出现 monomial
  • Concrete Mathematics(Graham, Knuth, Patashnik)在组合与生成函数等章节中会提到单项式/多项式表达。
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