📓 High School LevelThis shows grade level based on the word's complexity.

📓 High School LevelThis shows grade level based on the word's complexity.

noun

a mathematical expression (a + bi ) in which a and b are real numbers and i 2 = −1.

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Origin of complex number First recorded in 1825–35

Words nearby complex number complexion ,

complexioned ,

complexionless ,

complexity ,

complexity theory ,

complex number ,

complex odontoma ,

complexometric titration ,

complexometry ,

complexone ,

complex partial seizure

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use complex number in a sentence John’s key insight was to use complex number s, which can be added like vectors.

If we represent the second link as the complex number z, then the third link was z2, the fourth link was z3, and so on.

Go ahead — pick a value for k and raise that complex number to the seventh power.

At this point, many readers caught on to the clue from the beginning — “hopefully not too complex” was in fact suggesting that you explore complex number s.

Provided that quantum mechanics is correct—an assumption few would quibble with—the team’s argument essentially guarantees that complex number s are an unavoidable part of our description of the physical universe.

“Our members continue to face a number of challenges,” she said.

The number of dissenters though is unprecedented in the modern era.

Starting under Theodore Roosevelt and Howard Taft, embassies headed by career diplomats increased in number.

The number of diplomats was pitiful (45 appointees in 1860), as was the amount of money allocated to them.

Jett sees this number as a marker of how much the president allows professionals to do the job.

The country is well inhabited, for it contains fifty-one cities, near a hundred walled towns, and a great number of villages.

We had six field-pieces, but we only took four, harnessed wit twice the usual number of horses.

There are a number of bacilli, called acid-fast bacilli, which stain in the same way as the tubercle bacillus.

Five of the number had studied with Liszt before, and the young men are artists already before the public.

I do not think the average number of passengers on a corresponding route in our country could be so few as twenty.

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British Dictionary definitions for complex number

noun

any number of the form a + i b , where a and b are real numbers and i = √–1 See number (def. 1) Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for complex number

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 + 5i.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.