Copyright © Philip M. Parker, INSEAD. Terms of Use.

Complex Number

Definition: Complex Number

Complex Number

Noun

1. A number of the form a+bi where a and b are real numbers and i is the square root of -1.

Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.
 


Specialty Definition: Complex Number

DomainDefinition

Computing

Complex number A number of the form x+iy where i is the square root of -1, and x and y are real numbers, known as the "real" and "imaginary" part. Complex numbers can be plotted as points on a two-dimensional plane, known as an Argand diagram, where x and y are the Cartesian coordinates. An alternative, polar notation, expresses a complex number as (r e^it) where e is the base of natural logarithms, and r and t are real numbers, known as the magnitude and phase. The two forms are related: r e^it = r cos(t) + i r sin(t) = x + i y where x = r cos(t) y = r sin(t) All solutions of any polynomial equation can be expressed as complex numbers. This is the so-called Fundamental Theorem of Algebra, first proved by Cauchy. Complex numbers are useful in many fields of physics, such as electromagnetism because they are a useful way of representing a magnitude and phase as a single quantity. (1995-04-10). Source: The Free On-line Dictionary of Computing.

Source: compiled by the editor from various references; see credits.

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Synonyms: Complex Number

Synonyms: complex quantity (n), imaginary number (n). (additional references)

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Synonyms within Context: Complex Number

ContextSynonyms within Context (source: adapted from Roget's Thesaurus).

Number

Sum, difference, complement, subtrahend; product; multiplicand, multiplier, multiplicator; coefficient, multiple; dividend, divisor, factor, quotient, submultiple; fraction, rational number; surd, irrational number; transcendental number; mixed number, complex number, complex conjugate; numerator, denominator; decimal, circulating decimal, repetend; common measure, aliquot part; prime number, prime, relative prime, prime factor, prime pair; reciprocal; totient.

Source: adapted from Roget's Thesaurus.

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Crosswords: Complex Number

English words defined with "complex number": imaginary part, imaginary part of a complex numbermodulus. (references)

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Commercial Usage: Complex Number

DomainTitle

Books

  • Pre-Math: The Success Training Program of Increasingly Complex Number Skills (reference)

    (more book examples)

Source: compiled by the editor from various references; see credits.

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Photo Album: Complex Number

ThumbnailDescription & Credit

Complex Number 17 at Cape Canaveral where TIROS-carrying Thor-Delta rockets were launched. Credit: NOAA in Space.

Source: pictures compiled by the editor from various references; see picture credits.

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Expression: Complex Number

Expression using "complex number": imaginary part of a complex number. Additional references.

Source: compiled by the editor from various references; see credits.

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Frequency of Internet Keywords: Complex Number

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day

complex number

8

complex number system

2

calculator complex number

2
Source: compiled by the editor from various references; see credits.

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Modern Translation: Complex Number

Language Translations for "complex number"; alternative meanings/domain in parentheses.

Danish

  

komplekst tal. (various references)

   

Dutch

  

complex getal. (various references)

   

Finnish

  

kompleksiluku. (various references)

   

French

  

nombre complexe. (various references)

   

German

  

komplexe Zahl. (various references)

   

Italian

  

numero complesso (imaginary number). (various references)

   

Japanese Kanji 

  

虚数 (imaginary part). (various references)

   

Japanese Katakana 

  

きょすう (imaginary part). (various references)

   

Manx

  

earroo conrieugh. (various references)

   

Pig Latin

  

omplexcay umbernay

   

Russian 

  

комплексное число. (various references)

   

Spanish

  

número complejo. (various references)

   

Swedish

  

komplext tal. (various references)

Source: compiled by the editor from various translation references.

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Anagrams: Complex Number

Scrabble® Enable2K-Verified Anagrams

Words within the letters "b-c-e-e-l-m-m-n-o-p-r-u-x"

-4 letters: complexer, lumbermen.

-5 letters: comember, encumber, exemplum, opercule, opulence, recouple.

Source: compiled by the editor from various references; see credits.

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INDEX

1. Definition
2. Synonyms
3. Crosswords
4. Usage: Commercial
5. Images: Photo Album
6. Expressions
7. Expressions: Internet
8. Translations: Modern
9. Anagrams
10. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.