Approximating sin(x) to 5 ULP with Chebyshev Polynomials
teropa · x · 2026-08-27
A retweet sharing a blog post about approximating sin(x) using Chebyshev polynomials. The method achieves an accuracy within 5 Units of Least Precision (ULP) (0.000027%) over a large domain without argument reduction. The post details the coefficient derivation and the use of ULP to measure relative error.
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