imaginary number

英 [ɪˌmædʒɪnəri ˈnʌmbə(r)]

美 [ɪˌmædʒɪneri ˈnʌmbər]

n.  虚数

计算机

牛津词典

noun

• 虚数
  a number expressed as the square root of a negative number, especially the square root of -1

英英释义

noun

• (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
  Synonym:complex numbercomplex quantityimaginary

双语例句

• The relative errors of real number part and imaginary number part of wave function change periodically between positive and negative numbers.
  波函数相对误差随时间的演变表现出一定的规律性，其实数部分和虚数部分的相对误差周期性地在正负之间来回变化。
• The third to last panel is an imaginary number. Shouldn't it be-SQRT ( x)?
  倒数第三张图是错的吧？难道不应该是-√x嘛？
• The universal gravitation field is an imaginary number field
  万有引力场是虚数场
• This essay mainly deals with the regular pattern of the effect of controled source and mutual inductance in the transition from DC analytical Program with real number domain to AC analytical Program with imaginary number domain. The programming language is BASIC.
  本文主要阐述了利用BASIC语言对已有实数范围的DC分析程序向复数范围的AC分析程序过渡中，受控电源及互感元件的作用规律。
• According to the 27.12 MHz RF Auto-follow the electricity system design characteristics, the panel capacitor type of defrosting-system and the analytical research was carried out in the Frozen Spanish mackerel of Dielectric constant model mutually, real number and imaginary number.
  基于27.12MHz射频自跟踪平板电容式解冻系统的电气系统设计特点，对冷冻鲅鱼的介电常数模型、实部和虚部进行了分析研究。
• Although to seek the derivative by Hartley transform method is more sophisticated than that by Fourier transform method, in the computing, the former only compute the real number, and the latter compute the real part and imaginary part of complex number at the same time.
  虽然Hartley变换法在求取导数时较Fourier变换法复杂，但由于Fourier变换法的计算同时涉及复数的实部与虚部，在计算速度和占用内存方面不如Hartley变换法。
• If the imaginary line crosses an even number of boundary lines, the area can either be filled or not filled.
  如果想象的线交叉过一条偶数的边界线，那么该区域可以是已填充的或未填充的。
• The area is filled if the number of boundary lines going in one direction ( relative to the imaginary line) is not equal to the number of boundary lines going in the other direction.
  如果朝一个方向（相对于想象的线）的边界线的数量不等于朝其它方向的边界线的数量，那么该区域是已填充的。
• The enclosed area is filled only if that imaginary line crosses an odd number of boundary lines.
  封闭区域只在如果想象的线与边界线的奇数数量交叉时才被填充。
• If α is a pure imaginary number, the values form an isolated set and are distributed on a ray.
  当指数α为纯虚数时，无穷多值是孤立点集并分布在射线上。