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* [3.12] gh-118671: Updated dead ActiveState links (GH-118730) (#118754)Miss Islington (bot)2024-05-081-1/+1
| | | | | | Co-authored-by: trag1c <trag1cdev@yahoo.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
* [3.12] gh-102837: more tests for the math module (GH-111930)(GH-102523) ↵Petr Viktorin2023-11-131-0/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (GH-112030) * gh-102837: improve test coverage for math module (GH-102523) (Only the test changes from GH-102523 are cherry-picked) - input checks for math_1(L989), math_1a(L1023), math_2(L1064,L1071), hypot(L2682), log(L2307), ldexp(L2168), ceil(L1165), floor(L1236,L1239) and dist(L2587,L2588,L2628). - improve fsum coverage for exceptional cases (L1433,L1438,L1451,L1497), ditto fmod(L2378) (all line numbers are wrt the main branch at 5e6661bce9) * gh-102837: more tests for the math module (GH-111930) Add tests to improve coverage: * fsum: L1369, L1379, L1383, L1412 * trunc: L2081 * log: L2267 * dist: L2577, L2579 * hypot: L2632 * sumprod: L2744, L2754, L2774, L2778, L2781, L2785, L2831, L2835, L2838 * pow: L2982 * prod: L3294, L3308, L3318-3330 // line numbers wrt to 9dc4fb8204 (cherry picked from commit c61de456db0186b65d479d41e84127832205d30d) --------- Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
* [3.12] gh-111342: fix typo in math.sumprod (GH-111416) (gh-111419)Miss Islington (bot)2023-10-281-0/+1
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* gh-94906: Support multiple steps in math.nextafter (#103881)Matthias Görgens2023-05-191-3/+17
| | | | | | | This PR updates `math.nextafter` to add a new `steps` argument. The behaviour is as though `math.nextafter` had been called `steps` times in succession. --------- Co-authored-by: Mark Dickinson <mdickinson@enthought.com>
* gh-104263: Rely on Py_NAN and introduce Py_INFINITY (GH-104202)Sebastian Berg2023-05-101-2/+2
| | | | | | | | | | This PR removes `_Py_dg_stdnan` and `_Py_dg_infinity` in favour of using the standard `NAN` and `INFINITY` macros provided by C99. This change has the side-effect of fixing a bug on MIPS where the hard-coded value used by `_Py_dg_stdnan` gave a signalling NaN rather than a quiet NaN. --------- Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* Revert "gh-89381: Fix invalid signatures of math/cmath.log (#101404)" (#101580)Mark Dickinson2023-02-051-1/+0
| | | This reverts commit 0ef92d979311ba82d4c41b22ef38e12e1b08b13d.
* GH-100485: Create an alternative code path when an accurate fma() ↵Raymond Hettinger2023-02-041-0/+5
| | | | implementation is not available (#101567)
* gh-89381: Fix invalid signatures of math/cmath.log (#101404)Sergey B Kirpichev2023-01-291-0/+1
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* GH-100485: Add extended accuracy test. Switch to faster fma() based ↵Raymond Hettinger2023-01-281-0/+83
| | | | variant. GH-101383)
* GH-100485: Tweaks to sumprod() (GH-100857)Raymond Hettinger2023-01-081-0/+1
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* GH-100485: Add math.sumprod() (GH-100677)Raymond Hettinger2023-01-071-0/+166
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* GH-98897: fix memory leak if `math.dist` raises exception (GH-98898)Kumar Aditya2022-11-011-0/+5
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* bpo-37295: Use constant-time comb() and perm() for larger n depending on k ↵Serhiy Storchaka2022-01-091-4/+4
| | | | (GH-30305)
* bpo-45917: Add math.exp2() method - return 2 raised to the power of x (GH-29829)Gideon2021-11-291-0/+11
| | | Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-35606: Fix math.prod tests using 'start' as keyword parameter (GH-28595)Pablo Galindo Salgado2021-09-281-6/+12
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* bpo-5846: Do not use obsolete unittest functions. (GH-28303)Serhiy Storchaka2021-09-131-8/+5
| | | | Get rid of use of makeSuite() and findTestCases(). Also make test_math and test_threading_local discoverable.
* bpo-44339: Fix math.pow corner case to comply with IEEE 754 (GH-26606)Mark Dickinson2021-06-121-2/+2
| | | Change the behaviour of `math.pow(0.0, -math.inf)` and `math.pow(-0.0, -math.inf)` to return positive infinity instead of raising `ValueError`. This makes `math.pow` consistent with the built-in `pow` (and the `**` operator) for this particular special case, and brings the `math.pow` special-case handling into compliance with IEEE 754.
* bpo-44357:Add `math.cbrt()` function: Cube Root (GH-26622)Ajith Ramachandran2021-06-101-0/+16
| | | | | | * Add math.cbrt() function: Cube Root Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-44364:Add non integral tests for `sqrt()` (#26625)Ajith Ramachandran2021-06-101-0/+4
| | | | | * Add non integral tests for `sqrt()` Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25145)Inada Naoki2021-04-041-2/+2
| | | | | | | | | | | | | | | | | | | * test_asyncio * test_bz2 * test_math * test_cmath * test_cmd_line * test_cmd_line_script * test_compile * test_contextlib * test_profile * ctypes/test/test_find * test_multiprocessing * test_configparser * test_csv * test_dbm_dumb * test_decimal * test_difflib * os.fdopen() calls io.text_encoding() to emit EncodingWarning for right place.
* Revert "Fix all Python Cookbook links (#22205)" (GH-22424)Andre Delfino2020-09-271-1/+1
| | | This commit reverts commit ac0333e1e117b7f61ed7ef1dbcdb6e515ada603b as the original links are working again and they provide extended features such as comments and alternative versions.
* bpo-41513: Add accuracy tests for math.hypot() (GH-22327)Raymond Hettinger2020-09-211-0/+63
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* Fix all Python Cookbook links (#22205)Andre Delfino2020-09-151-1/+1
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* bpo-41513: Remove broken tests that fail on Gentoo (GH-22249)Raymond Hettinger2020-09-151-51/+0
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* bpo-41513: Add docs and tests for hypot() (GH-22238)Raymond Hettinger2020-09-141-0/+51
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* bpo-41513: Improve speed and accuracy of math.hypot() (GH-21803)Raymond Hettinger2020-08-161-3/+4
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* bpo-37999: No longer use __int__ in implicit integer conversions. (GH-15636)Serhiy Storchaka2020-05-261-10/+5
| | | | Only __index__ should be used to make integer conversions lossless.
* bpo-39871: Fix possible SystemError in atan2, copysign and remainder (GH-18806)Zackery Spytz2020-03-141-0/+16
| | | | | | In math_2(), the first PyFloat_AsDouble() call should be checked for failure before the second call. Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-39648: Expand math.gcd() and math.lcm() to handle multiple arguments. ↵Serhiy Storchaka2020-02-231-25/+33
| | | | | | | | | | | | | | | | (GH-18604) * bpo-39648: Expand math.gcd() and math.lcm() to handle multiple arguments. * Simplify fast path. * Difine lcm() without arguments returning 1. * Apply suggestions from code review Co-Authored-By: Mark Dickinson <dickinsm@gmail.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-39479:Add math.lcm() function: Least Common Multiple (#18547)ananthan-1232020-02-191-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Update math.rst * Update math.rst * updated whats new * Update test_math.py * Update mathmodule.c * Update mathmodule.c.h * Update ACKS * 📜🤖 Added by blurb_it. * Update 3.9.rst * Update 2020-02-18-12-37-16.bpo-39479.j3UcCq.rst * Update math.rst * Update 2020-02-18-12-37-16.bpo-39479.j3UcCq.rst * Update test_math.py * Update ACKS * Update mathmodule.c.h * Update mathmodule.c * Update mathmodule.c.h * Update mathmodule.c.h Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* Move test_math tests (GH-18098)Victor Stinner2020-01-211-148/+148
| | | | | testPerm() and testComb() belong to MathTests, not to IsCloseTests(). test_nextafter() and test_ulp() now use assertIsNaN().
* bpo-39396: Fix math.nextafter(-0.0, +0.0) on AIX 7.1 (GH-18094)Victor Stinner2020-01-211-77/+77
| | | | Move also math.nextafter() on math.ulp() tests from IsCloseTests to MathTests.
* bpo-39310: Add math.ulp(x) (GH-17965)Victor Stinner2020-01-131-28/+27
| | | | Add math.ulp(): return the value of the least significant bit of a float.
* bpo-39288: Add math.nextafter(x, y) (GH-17937)Victor Stinner2020-01-121-0/+54
| | | Return the next floating-point value after x towards y.
* bpo-38992: avoid fsum test failure from constant-folding (GH-17513)Mark Dickinson2019-12-091-1/+7
| | | | | | * Issue 38992: avoid fsum test failure * Add NEWS entry
* bpo-38639: Optimize floor(), ceil() and trunc() for floats. (GH-16991)Serhiy Storchaka2019-11-161-21/+40
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* bpo-37691: Let math.dist() accept sequences and iterables for coordinates ↵Raymond Hettinger2019-07-271-2/+4
| | | | (GH-14975)
* Fix typos in docs, comments and test assert messages (#14872)Min ho Kim2019-07-211-2/+2
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* Remove unused imports in tests (GH-14518)Victor Stinner2019-07-011-1/+1
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* bpo-36511: Add buildbot scripts and fix tests for Windows ARM32 buildbot ↵Paul Monson2019-06-191-0/+2
| | | | (GH-13454)
* bpo-35431: Test math.comb() and math.perm() for OverflowError only on ↵Serhiy Storchaka2019-06-171-3/+5
| | | | | CPython. (GH-14146) Other implementation can raise MemoryError, but it can takes hours.
* bpo-37315: Deprecate accepting floats in math.factorial(). (GH-14147)Serhiy Storchaka2019-06-171-7/+12
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* bpo-37178: Allow a one argument form of math.perm() (GH-13905)Raymond Hettinger2019-06-081-2/+7
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* bpo-35431: Drop the k <= n requirement (GH-13798)Raymond Hettinger2019-06-041-6/+6
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* bpo-37128: Add math.perm(). (GH-13731)Serhiy Storchaka2019-06-021-1/+65
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* bpo-35431: Refactor math.comb() implementation. (GH-13725)Serhiy Storchaka2019-06-011-7/+22
| | | | | | | * Fixed some bugs. * Added support for index-likes objects. * Improved error messages. * Cleaned up and optimized the code. * Added more tests.
* bpo-35431: Implemented math.comb (GH-11414)Yash Aggarwal2019-06-011-0/+51
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* bpo-36957: Speed up math.isqrt (#13405)Mark Dickinson2019-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add math.isqrt function computing the integer square root. * Code cleanup: remove redundant comments, rename some variables. * Tighten up code a bit more; use Py_XDECREF to simplify error handling. * Update Modules/mathmodule.c Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> * Update Modules/mathmodule.c Use real argument clinic type instead of an alias Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> * Add proof sketch * Updates from review. * Correct and expand documentation. * Fix bad reference handling on error; make some variables block-local; other tidying. * Style and consistency fixes. * Add missing error check; don't try to DECREF a NULL a * Simplify some error returns. * Another two test cases: - clarify that floats are rejected even if they happen to be squares of small integers - TypeError beats ValueError for a negative float * Add fast path for small inputs. Needs tests. * Speed up isqrt for n >= 2**64 as well; add extra tests. * Reduce number of test-cases to avoid dominating the run-time of test_math. * Don't perform unnecessary extra iterations when computing c_bit_length. * Abstract common uint64_t code out into a separate function. * Cleanup. * Add a missing Py_DECREF in an error branch. More cleanup. * Update Modules/mathmodule.c Add missing `static` declaration to helper function. Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> * Add missing backtick.
* bpo-36887: add math.isqrt (GH-13244)Mark Dickinson2019-05-181-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add math.isqrt function computing the integer square root. * Code cleanup: remove redundant comments, rename some variables. * Tighten up code a bit more; use Py_XDECREF to simplify error handling. * Update Modules/mathmodule.c Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> * Update Modules/mathmodule.c Use real argument clinic type instead of an alias Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> * Add proof sketch * Updates from review. * Correct and expand documentation. * Fix bad reference handling on error; make some variables block-local; other tidying. * Style and consistency fixes. * Add missing error check; don't try to DECREF a NULL a * Simplify some error returns. * Another two test cases: - clarify that floats are rejected even if they happen to be squares of small integers - TypeError beats ValueError for a negative float * Documentation and markup improvements; thanks Serhiy for the suggestions! * Cleaner Misc/NEWS entry wording. * Clean up (with one fix) to the algorithm explanation and proof.
* Rework integer overflow path in math.prod and add more tests (GH-11809)Pablo Galindo2019-03-091-35/+86
| | | | | The overflow check was relying on undefined behaviour as it was using the result of the multiplication to do the check, and once the overflow has already happened, any operation on the result is undefined behaviour. Some extra checks that exercise code paths related to this are also added.
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