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 Even mathematical giants found complex numbers difficult to swallow. William Ross, The Conversation, 10 Mar. 2025 However, the model failed on the hidden code and complex number set prompts, making basic errors in counting and/or arithmetic that one or both of the OpenAI models avoided. Ars Technica, 28 Jan. 2025 Also, twistor space seems to play a key role, and on the twistor side everything is described by calculus with complex numbers, which is one of the most beautiful parts of mathematics. Quanta Magazine, 25 Sep. 2024 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 7 Sep. 2025.

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