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Euler's phi-function

American  

noun

Mathematics.

  1. the function that assigns to each integer the number of positive integers less than the given integer and relatively prime to the given integer.

Etymology

Origin of Euler's phi-function

Named after L. Euler

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.