# complex number

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Related to Complex numbers: Imaginary numbers

## complex number

*n.*

Any number of the form

*a*+*bi,*where*a*and*b*are real numbers and*i*is an imaginary number whose square equals -1.## complex number

*n*

(Mathematics) any number of the form

*a*+ i*b*, where*a*and*b*are real numbers and i = √–1. See number^{1}## com′plex num′ber

*n.*

a mathematical expression (

*a*+*bi*) in which*a*and*b*are real numbers and*i*^{2}=−1.[1825–35]

## com·plex number

(kŏm′plĕks′) A number that can be expressed in terms of

*i*(the square root of -1). Mathematically, such a number can be written*a*+*bi,*where*a*and*b*are real numbers. An example is 4 + 5*i.*ThesaurusAntonymsRelated WordsSynonyms

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Noun | 1. | complex 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 arrangement number - 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 sign real, real number - any rational or irrational number pure imaginary number - an imaginary number of the form a+bi where a is 0 imaginary part, imaginary part of a complex number - the part of a complex number that has the square root of -1 as a factor |

Translations

**komplexní číslo**

**kompleksa nombro**

**kompleksiluku**

**מספר מרוכב**

**kompleksni broj**

**komplex szám**

**tvinntala**

**numero complesso**

**복소수**

**komplekst tall**

**komplexa tal**

**karmaşık sayılar**

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