Problem 46066. Evaluate the logarithmic integral

ChrisR

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The logarithmic integral  plays a role in number theory because the related function  provides an estimate for the number of primes less than x. MATLAB's Symbolic Toolbox has the function logint, but it is not available in basic MATLAB or Cody.
Write a function to evaluate the logarithmic integral.
See also Cody Problem 46081 "Set Soldner's constant".

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Last Solution submitted on Jan 29, 2026

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