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* gh-101410: Customize error messages for 1-arg math functions (#129497)Sergey B Kirpichev2025-04-221-8/+8
| | | | | | This also reverts loghelper() change in 75f59bb629 for integer input. The error message shouldn't include argument value here. Co-authored-by: Victor Stinner <vstinner@python.org>
* Fix typos (#123775)algonell2024-09-091-1/+1
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* gh-122637: fix tanh(±0+infj) and tanh(±0+nanj) to return ±0+nanj (#122638)Sergey B Kirpichev2024-08-041-12/+12
| | | | | | | | | As per C11 DR#471, ctanh (0 + i NaN) and ctanh (0 + i Inf) should return 0 + i NaN (with "invalid" exception in the second case). This has corresponding implications for ctan(z), as its errors and special cases are handled as if the operation is implemented by -i*ctanh(i*z). This patch fixes cmath's code to do same. Glibs patch: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=d15e83c5f5231d971472b5ffc9219d54056ca0f1
* gh-121889: cmath.acosh(0+nanj) returns nan+pi/2j (#121892)Sergey B Kirpichev2024-08-041-2/+2
| | | | | As per C11 DR#471 (adjusted resolution accepted for C17), cacosh (0 + iNaN) should return NaN ± i pi/2, not NaN + iNaN. This patch fixes cmath's code to do same.
* gh-119057: Use better error messages for zero division (#119066)Nikita Sobolev2024-06-031-1/+1
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* gh-108303: Move all math files to `Lib/test/mathdata/` (#109512)Nikita Sobolev2023-09-215-0/+4713
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