V2EX multiplicand

Multiplicand

释义 Definition

名词 (n.) 被乘数,即在乘法运算中被另一个数(乘数)所乘的那个数。例如在 3 × 5 中,5 是被乘数(multiplicand),3 是乘数(multiplier)。

发音 Pronunciation

/mltplknd/

例句 Examples

In the equation 4 × 6, the number 6 is the multiplicand.
在算式 4 × 6 中,数字 6 是被乘数。

When teaching young students about multiplication, it is important to help them distinguish between the multiplier and the multiplicand so they can better understand the structure of the operation.
在教小学生乘法时,帮助他们区分乘数和被乘数是很重要的,这样他们才能更好地理解运算的结构。

词源 Etymology

该词源自晚期拉丁语 multiplicandus,是拉丁动词 multiplicare(意为"增多、使增倍")的动形词(gerundive)形式,字面意思是"应当被乘的(数)"。其中,multi- 表示"多",plicare 表示"折叠",合在一起形象地描述了"将一个数反复叠加"的乘法过程。该词约在16世纪进入英语,主要用于数学领域。

相关词汇 elated Words

文学与著作引用 Literary References

  • 欧几里得的《几何原本》(Elements)中虽未直接使用该词,但其关于比例与乘法的讨论奠定了 multiplicand 这一概念的数学基础。
  • 在早期数学教科书中,如罗伯特雷科德(Robert Recorde)的《技艺基础》(The Ground of Artes,1543)中,multiplicand 作为乘法术语被详细讲解,是英语数学教育文献中最早使用该词的著作之一。
  • 莱昂哈德欧拉(Leonhard Euler)的《代数基础》(Elements of Algebra,1770)中系统阐述了乘法运算中 multiplicand 与 multiplier 的区别。
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