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# Complex number

Complex Com"plex (k[o^]m"pl[e^]ks), a. [L. complexus, p. p. of complecti to entwine around, comprise; com- + plectere to twist, akin to plicare to fold. See {Plait}, n.] 1. Composed of two or more parts; composite; not simple; as, a complex being; a complex idea. [1913 Webster]

Ideas thus made up of several simple ones put together, I call complex; such as beauty, gratitude, a man, an army, the universe. --Locke. [1913 Webster]

2. Involving many parts; complicated; intricate. [1913 Webster]

When the actual motions of the heavens are calculated in the best possible way, the process is difficult and complex. --Whewell. [1913 Webster]

{Complex fraction}. See {Fraction}.

{Complex number} (Math.), in the theory of numbers, an expression of the form a + b[root]-1, when a and b are ordinary integers.

Syn: See {Intricate}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

### Look at other dictionaries:

• complex number — n. any number expressed as a + bi, where a and b are real numbers and i is the imaginary unit, √P1: if b is zero it is a real number, but if b is not zero it is an imaginary number …   English World dictionary

• complex number — ► NOUN Mathematics ▪ a number containing both a real and an imaginary part …   English terms dictionary

• Complex number — A complex number can be visually represented as a pair of numbers forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the square root of –1. A complex… …   Wikipedia

• complex number — noun (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of 1 (Freq. 3) • Syn: ↑complex quantity, ↑imaginary number, ↑imaginary • Topics: ↑mathematics, ↑math, ↑ …   Useful english dictionary

• complex number — a mathematical expression (a + bi) in which a and b are real numbers and i2 = 1. [1825 35] * * * Any number consisting of both real numbers and imaginary numbers. It has the form a + bi, where a and b are real numbers and i = 1; a is called the… …   Universalium

• complex number — kompleksinis skaičius statusas T sritis informatika apibrėžtis Skaičius, išreiškiamas tokia forma: a + bi, kur a ir b yra realieji skaičiai, o i yra šaknis iš 1 ir vadinama menamąja dalimi. Kompleksiniai skaičiai gali būti pavaizduojami taškais… …   Enciklopedinis kompiuterijos žodynas

• complex number — number which is a combination of real and imaginary numbers, non concrete numbers (Mathematics) …   English contemporary dictionary

• complex number — noun Date: 1856 a number of the form a + b √ 1 where a and b are real numbers …   New Collegiate Dictionary

• complex number — noun A number of the form a + bi, where a and b are real numbers and i = minus;1 …   Wiktionary

• complex number — See number …   Philosophy dictionary