# imaginary number

(redirected from I number)
Also found in: Thesaurus, Encyclopedia.

## imaginary number

n.
A complex number in which the imaginary part is not zero.

## imaginary number

n
(Mathematics) any complex number of the form ib, where i = √–1
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## imag′inary num′ber

n.
a complex number having its real part equal to zero.
[1905–10]

## i·mag·i·nar·y number

(ĭ-măj′ə-nĕr′ē)
A type of complex number in which the multiple of i (the square root of -1) is not equal to zero. Examples of imaginary numbers include 4i and 2 - 3i, but not 3 + 0i (which is just 3). See more at complex number.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 imaginary number - (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementnumber - a concept of quantity involving zero and units; "every number has a unique position in the sequence"complex conjugate - either of two complex numbers whose real parts are identical and whose imaginary parts differ only in signreal, real number - any rational or irrational numberpure imaginary number - an imaginary number of the form a+bi where a is 0imaginary part, imaginary part of a complex number - the part of a complex number that has the square root of -1 as a factor
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
imaginární číslo
número imaginario
imaginaariluku
nombre imaginaire pur
מספר מרוכב
imaginarni broj
imaginárius számképzetes szám
þvertala
허수
Site: Follow: Share:
Open / Close