难检字字典在线查询

汉语拼音：shí shù

有理数与无理数的总称。全体实数组成的集合称为实数集，通常记作r。

1. 实际数目。

   宋 陆游 《老学庵笔记》卷三：“一日，同见新守，守问 天童觉老 ：‘山中几僧？’对曰：‘千五百。’又以问 育王湛老 ，对曰：‘千僧。’末以问 持 持 拱手曰：‘百二十。’守曰：‘三刹名相亚，僧乃如此不同耶？’ 持 復拱手曰：‘敝院是实数。’守为抚掌。” 毛泽东 《井冈山的斗争》：“当革命初期，中间阶级表面上投降贫农阶级，实际则利用他们从前的社会地位及家族主义，恐吓贫农，延长分田的时间。到无可延宕时，即隐瞒土地实数，或自据肥田，把瘠田让人。”

2. 数学术语。有理数和无理数的总称。

• The real numbers are called the barycentric coordinates of x.

  实数称为X重心坐标.

• In PASCAL , a collection of nonreal scalar elements, called members.

  在PASCAL语言中, 称为成员的非实数标量元素的集合.

• The real part of the modulus is often called the storage modulus.

  与应变同相的实数部分模量,通常称为储能模量.

• Intervals can be either real or imaginary in the theory of relativity.

  在相对论中,间隔可以是实数,也可以是虚数.

• There are infinitely many real numbers between any two distinct real numbers.

  在任何两个实数之间都有无穷多个实数.

• We assumed that E is a real number.

  我们假定E是实数.

• The question of the logical structure of the real number system was faced squarely.

  实数系的逻辑结构问题被正视.

• The basic prerequisite for reading this book is a familiarity with the real number system.

  阅读本书必须熟悉实数系.

• We see immediately that after substitution the real part of each term is 0.

  我们立即看出,在代换之后,每项的实数皆为零.

• The euclidean norm of an n - vector x with real or complex components is defined as following.

  凡具实数分量或复数分量的n - 维向量x的欧氏范数被定义如下.

• Rational numbers and irrational numbers together form the set of real numbers.

  有理数与无理数一起构成实数.

• The acceptability of real number system depends on practice.

  实数系统的可接受性依赖于实践.

• Of course, reals and integers are stored in different formats.

  当然, 实数和整数的存储格式不同.

• The generic type Real, in its current implementation, is equivalent to Double.

  通常的实数类型, 在当前的使用中, 等同于双精度实数.

• The investors simply focus on two variables: price and value.

  他们只在乎两项实数: 价格与价值.