complex number

noun

: a number of the form a + b √-1 where a and b are real numbers

Examples of complex number in a Sentence

Recent Examples on the Web
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For some equations with singularities — points where the answers turn into infinity — looking at the nearby behavior with complex numbers can sometimes provide insight. Kenneth Chang, New York Times, 26 Mar. 2025 Naturally enough, the two qubits can be described by a quantum-mechanical wave function that involves four complex numbers. IEEE Spectrum, 15 Nov. 2018 Even mathematical giants found complex numbers difficult to swallow. William Ross, The Conversation, 10 Mar. 2025 Those complex numbers, α and β, each have a certain magnitude, and according to the rules of quantum mechanics, their squared magnitudes must add up to 1. IEEE Spectrum, 15 Nov. 2018 See All Example Sentences for complex number

Word History

First Known Use

1856, in the meaning defined above

Time Traveler
The first known use of complex number was in 1856

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Cite this Entry

“Complex number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/complex%20number. Accessed 29 Apr. 2025.

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