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Small loss of accuracy in Chebyshev interpolation #13

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MicheleCeresoli opened this issue Oct 24, 2023 · 0 comments

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MicheleCeresoli commented Oct 24, 2023

Starting from the highest Chebyshev coefficients and moving to the lowest improves the accuracy because adding from biggest to smallest floating-point numbers is less accurate than adding from smallest to biggest?. Implementing it however, would require an extra for-loop on every interpolation, is it worth the extra time?

See the MWE in issue #10.

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