| 单词 | imaginary number |
| 释义 | imaginary number noun[C] mathematicsspecializeduk/ɪˌmædʒ.ɪ.nər.i ˈnʌm.bər/us/ɪˌmædʒ.ə.ner.i ˈnʌm.bɚ/anumberthat is thesquarerootof anegativenumber 虚数Compare real number Terms for numbers
imaginary number| American Dictionaryimaginary number noun[C] us/ɪˈmædʒ·əˌner·i ˈnʌm·bər/algebra a number that is thesquareroot(= number youmultiplyby itself to get aparticularnumber)of anegativenumber(= number less than zero),especiallythesquarerootof -1 Examplesofimaginary numberimaginary number Bombelli called theimaginarynumberi plus of minus or minus of minus for -i. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.In complex numbers, the cube of a purelyimaginarynumberis also purely imaginary. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This is because the result of a negative integer under the radical will result in animaginarynumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Imaginarynumberliterals can be specified by appending a j. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A complex number is a quantity which can be written as the sum of a real number plus animaginarynumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It is a non-standard positional numeral system which uses theimaginarynumber2 "i" as its base. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.For example, is animaginarynumber, and its square is. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The nameimaginarynumberwas coined in the 17th century as a derogatory term, as such numbers were regarded by some as fictitious or useless. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Seeimaginarynumberfor a discussion of the reality of complex numbers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The network consequently must consist entirely of inductors and capacitors and the impedance will be purely animaginarynumberwith zero real part. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.A purelyimaginarynumberis a complex number whose real part is zero. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The turning point for him came with understanding the interpretation of negative and imaginary numbers as points on the complex plane. From theCambridge English Corpus The square of animaginarynumberis. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Complex quantities involve imaginary numbers. From theCambridge English Corpus Under these conditions negative numbers, irrational numbers, imaginary numbers, algebraic numbers, etc., became progressively more accepted and broke up the canonical meaning of the number concept. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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