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by ajross
833 days ago
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Actually pretty much everyone implements double precision sin/cos using the same (IIRC) pair of 6th order polynomials. The same SunPro code exists unchnaged in essentially every C library everywehre. It's just a fitted curve, no fancy series definition beyond what appears in the output coefficients. One for the "mostly linear" segment where the line crosses the origin and another for the "mostly parabolic" peak of the curve. |
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