the branch of mathematics dealing with analytic functions of a complex variable.
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How to use complex analysis in a sentence
That data is available to health departments and academics, who could use it to carry out a complex analysis that might link illnesses directly to a specific environmental factor.“A Complete Failure of the State”: Authorities Didn’t Heed Researchers’ Calls to Study Health Effects of Burning Sugar Cane | by Lulu Ramadan, The Palm Beach Post | August 19, 2021 | ProPublica
Meanwhile, other solvers used dot products, cross products and even complex analysis, always arriving at the same result.
For more on the Wallis product, and a way to prove it using complex analysis, check out Laurent Lessard’s write-up.