[issue31630] math.tan has poor accuracy near pi/2 on OpenBSD and NetBSD

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

> Seems the first result is calculated at compile time

Makes sense. Last time I looked, gcc uses MPFR for the compile-time calls, so I'd expect those to be correctly rounded.

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<https://bugs.python.org/issue31630>
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