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Author SHA1 Message Date
Mark Dickinson 73934b9da0
bpo-36887: add math.isqrt (GH-13244) 
* 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.
 2019-05-18 12:29:50 +01:00
Ned Batchelder 6faad355db bpo-36908: 'This module is always available' isn't helpful. (#13297) 
Makes the documentation of math and cmath module
more helpful for the beginners.
 2019-05-17 15:29:13 +05:30
Pablo Galindo bc09851586 bpo-35606: Implement math.prod (GH-11359) 2019-02-06 23:04:02 -08:00
Raymond Hettinger 9c18b1ae52
bpo-33089: Add math.dist() for computing the Euclidean distance between two points (GH-8561) 2018-07-31 00:45:49 -07:00
Raymond Hettinger c6dabe37e3
bpo-33089: Multidimensional math.hypot() (GH-8474) 2018-07-28 07:48:04 -07:00
Eric Appelt 308eab979d bpo-26701: Add documentation for __trunc__ (GH-6022) 
`int` fails back to `__trunc__` is `__int__` isn't defined, so cover
that in the docs.
 2018-03-10 18:44:12 +10:00
Sanyam Khurana 338cd83c5d bpo-25910: Link redirections in docs (#1933) 
Fixes some redirection links in docs.
 2018-01-20 01:25:37 +01:00
Serhiy Storchaka dbaf746b6d bpo-29956: Improve the math.exp() related documentation. (#1073) 2017-05-04 12:25:09 +03:00
Mark Dickinson a0ce375e10 bpo-29962: add math.remainder (#950) 
* Implement math.remainder.

* Fix markup for arguments; use double spaces after period.

* Mark up function reference in what's new entry.

* Add comment explaining the calculation in the final branch.

* Fix out-of-order entry in whatsnew.

* Add comment explaining why it's good enough to compare m with c, in spite of possible rounding error.
 2017-04-05 18:34:27 +01:00
Mark Dickinson 734125938d Fix misleading documentation for math.exp. (#951) 2017-04-02 08:30:04 -07:00
Mark Dickinson 5e65cd39df Issue #29282: Backed out changeset b33012ef1417 2017-01-21 13:10:52 +00:00
Mark Dickinson d1b230e48b Issue #29282: add fused multiply-add function, math.fma. 2017-01-21 12:35:30 +00:00
Georg Brandl 4770d6ec76 Add versionadded tags for (c)math.tau. 2016-08-16 07:08:46 +02:00
Guido van Rossum 0a891d70de Issue #12345: Add mathemathcal constant tau to math and cmath. 
Patch by Lisa Roach. See also PEP 628.
 2016-08-15 09:12:52 -07:00
Terry Jan Reedy fa089b9b0b Issue #22558: Add remaining doc links to source code for Python-coded modules. 
Reformat header above separator line (added if missing) to a common format.
Patch by Yoni Lavi.
 2016-06-11 15:02:54 -04:00
Georg Brandl 5d94134040 Closes #25910: fix dead and permanently redirected links in the docs. Thanks to SilentGhost for the patch. 2016-02-26 19:37:12 +01:00
Tal Einat d5519ed7f4 Issue #19543: Implementation of isclose as per PEP 485 
For details, see:
PEP 0485 -- A Function for testing approximate equality

Functions added: math.isclose() and cmath.isclose().

Original code by Chris Barker. Patch by Tal Einat.
 2015-05-31 22:05:00 +03:00
Benjamin Peterson 276e9c841d merge 3.4 2015-05-12 19:16:20 -04:00
Benjamin Peterson 19a3f17cb3 use imperative 2015-05-12 19:15:53 -04:00
Benjamin Peterson e960d18bb2 versionadded 2015-05-12 17:24:17 -04:00
Serhiy Storchaka 48e47aaa28 Issue #22486: Added the math.gcd() function. The fractions.gcd() function now is 
deprecated.  Based on patch by Mark Dickinson.
 2015-05-13 00:19:51 +03:00
Mark Dickinson a5d0c7c2fd Issue #23185: add math.inf and math.nan constants. 2015-01-11 11:55:29 +00:00
Larry Hastings 3732ed2414 Merge in all documentation changes since branching 3.4.0rc1. 2014-03-15 21:13:56 -07:00
Andrew Kuchling 3137885c36 #12211: remove paragraph about NaNs 2014-02-16 12:09:35 -05:00
Andrew Kuchling 8cb1ec3274 #12211: clarify math.copysign() documentation and docstring 2014-02-16 11:11:25 -05:00
Serhiy Storchaka bfdcd436f0 Issue #18758: Fixed and improved cross-references. 2013-10-13 23:09:14 +03:00
Ezio Melotti cc5ea62e48 #15438: merge with 3.2. 2013-02-23 04:55:24 +02:00
Ezio Melotti 739d5497c0 #15438: add a note to math.pow() that suggests using **/pow() for integers. Patch by Mark Dickinson. 2013-02-23 04:53:44 +02:00
Łukasz Langa 37bfa238da math.fsum docs did not show up because of a misplaced testsetup directive 
(merged 3.2 fix)
 2013-01-18 13:41:14 +01:00
Łukasz Langa 288234fe0e math.fsum docs did not show up because of a misplaced testsetup directive 2013-01-18 13:40:43 +01:00
Ezio Melotti 5a4b03dd82 #16154: merge with 3.2. 2013-01-11 09:12:28 +02:00
Ezio Melotti 405079213b #16154: fix some doctests in Doc/library. Patch by Ravi Sinha. 2013-01-11 09:09:07 +02:00
Victor Stinner 9415afcce1 meth.log2 doc: add a link to int.bit_length() 2011-09-21 03:35:18 +02:00
Benjamin Peterson eaee1385a0 note the point of having log2 2011-05-08 19:48:08 -05:00
Victor Stinner fa0e3d52d6 Issue #11888: Add log2 function to math module. Patch written by Mark 
Dickinson.
 2011-05-09 01:01:09 +02:00
Raymond Hettinger 12e6c256ca Fix markup and wording. 2011-03-31 13:59:24 -07:00
Raymond Hettinger 1081d48889 Add links to make the math docs more usable. 2011-03-31 12:04:53 -07:00
Mark Dickinson c762242cca Include versionadded in (c)math.isfinite docs (thanks Ezio Melotti). Other minor doc cleanups. 2010-07-11 19:47:37 +00:00
Mark Dickinson 8e0c996873 Issue #9165: Add math.isfinite and cmath.isfinite. 2010-07-11 17:38:24 +00:00
Benjamin Peterson 08bf91c041 Merged revisions 79307,79408,79430,79533,79542,79579-79580,79585-79587,79607-79608,79622,79717,79820,79822,79828,79862,79875,79923-79924,79941-79943,79945,79947,79951-79952 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79307 | florent.xicluna | 2010-03-22 17:45:50 -0500 (Mon, 22 Mar 2010) | 2 lines

  #7667: Fix doctest failures with non-ASCII paths.
........
  r79408 | victor.stinner | 2010-03-24 20:18:38 -0500 (Wed, 24 Mar 2010) | 2 lines

  Fix a gcc warning introduced by r79397.
........
  r79430 | brian.curtin | 2010-03-25 18:48:54 -0500 (Thu, 25 Mar 2010) | 2 lines

  Fix #6538. Markup RegexObject and MatchObject as classes. Patch by Ryan Arana.
........
  r79533 | barry.warsaw | 2010-03-31 16:07:16 -0500 (Wed, 31 Mar 2010) | 6 lines

  - Issue #8233: When run as a script, py_compile.py optionally takes a single
    argument `-` which tells it to read files to compile from stdin.  Each line
    is read on demand and the named file is compiled immediately.  (Original
    patch by Piotr O?\197?\188arowski).
........
  r79542 | r.david.murray | 2010-03-31 20:28:39 -0500 (Wed, 31 Mar 2010) | 3 lines

  A couple small grammar fixes in test.rst, and rewrite the
  check_warnings docs to be clearer.
........
  r79579 | georg.brandl | 2010-04-02 03:34:41 -0500 (Fri, 02 Apr 2010) | 1 line

  Add 2.6.5.
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  r79580 | georg.brandl | 2010-04-02 03:39:09 -0500 (Fri, 02 Apr 2010) | 1 line

  #2768: add a note on how to get a file descriptor.
........
  r79585 | georg.brandl | 2010-04-02 04:03:18 -0500 (Fri, 02 Apr 2010) | 1 line

  Remove col-spanning cells in logging docs.
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  r79586 | georg.brandl | 2010-04-02 04:07:42 -0500 (Fri, 02 Apr 2010) | 1 line

  Document PyImport_ExecCodeModuleEx().
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  r79587 | georg.brandl | 2010-04-02 04:11:49 -0500 (Fri, 02 Apr 2010) | 1 line

  #8012: clarification in generator glossary entry.
........
  r79607 | andrew.kuchling | 2010-04-02 12:48:23 -0500 (Fri, 02 Apr 2010) | 1 line

  #6647: document that catch_warnings is not thread-safe
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  r79608 | andrew.kuchling | 2010-04-02 12:54:26 -0500 (Fri, 02 Apr 2010) | 1 line

  #6647: add note to two examples
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  r79622 | tarek.ziade | 2010-04-02 16:34:19 -0500 (Fri, 02 Apr 2010) | 1 line

  removed documentation on code that was reverted and pushed into distutils2
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  r79717 | antoine.pitrou | 2010-04-03 16:22:38 -0500 (Sat, 03 Apr 2010) | 4 lines

  Fix wording / typography, and a slightly misleading statement
  (memoryviews don't support complex structures right now)
........
  r79820 | benjamin.peterson | 2010-04-05 22:34:09 -0500 (Mon, 05 Apr 2010) | 1 line

  ready _sre types
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  r79822 | georg.brandl | 2010-04-06 03:18:15 -0500 (Tue, 06 Apr 2010) | 1 line

  #8320: document return value of recv_into().
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  r79828 | georg.brandl | 2010-04-06 09:33:44 -0500 (Tue, 06 Apr 2010) | 1 line

  Add JP.
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  r79862 | georg.brandl | 2010-04-06 15:27:59 -0500 (Tue, 06 Apr 2010) | 1 line

  Fix syntax.
........
  r79875 | mark.dickinson | 2010-04-06 17:18:23 -0500 (Tue, 06 Apr 2010) | 1 line

  More NaN consistency doc fixes.
........
  r79923 | georg.brandl | 2010-04-10 06:15:24 -0500 (Sat, 10 Apr 2010) | 1 line

  #8360: skipTest was added in 2.7.
........
  r79924 | georg.brandl | 2010-04-10 06:16:59 -0500 (Sat, 10 Apr 2010) | 1 line

  #8346: update version.
........
  r79941 | andrew.kuchling | 2010-04-10 20:39:36 -0500 (Sat, 10 Apr 2010) | 1 line

  Two grammar fixes
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  r79942 | andrew.kuchling | 2010-04-10 20:40:06 -0500 (Sat, 10 Apr 2010) | 1 line

  Punctuation fix
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  r79943 | andrew.kuchling | 2010-04-10 20:40:30 -0500 (Sat, 10 Apr 2010) | 1 line

  Add various items
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  r79945 | andrew.kuchling | 2010-04-10 20:40:49 -0500 (Sat, 10 Apr 2010) | 1 line

  name correct
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  r79947 | andrew.kuchling | 2010-04-10 20:44:13 -0500 (Sat, 10 Apr 2010) | 1 line

  Remove distutils section
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  r79951 | andrew.kuchling | 2010-04-11 07:48:08 -0500 (Sun, 11 Apr 2010) | 1 line

  Two typo fixes
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  r79952 | andrew.kuchling | 2010-04-11 07:49:37 -0500 (Sun, 11 Apr 2010) | 1 line

  Add two items
........
 2010-04-11 16:12:57 +00:00
Mark Dickinson 42dfeec893 Merged revisions 79871 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79871 | mark.dickinson | 2010-04-06 23:10:55 +0100 (Tue, 06 Apr 2010) | 2 lines

  Use consistent spelling for nans (thanks Georg for noticing).
........
 2010-04-06 22:13:37 +00:00
Mark Dickinson 603b7535cc Merged revisions 79858 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79858 | mark.dickinson | 2010-04-06 20:50:03 +0100 (Tue, 06 Apr 2010) | 3 lines

  Issue #7947:  Clarify math module behaviour for IEEE 754 special cases, along
  with a number of additional minor edits and typo corrections.
........
 2010-04-06 19:55:03 +00:00
Ezio Melotti fc21e01b63 remove obsolete sentence 2010-01-16 14:46:27 +00:00
Mark Dickinson 45f992a45e Merged revisions 76878 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76878 | mark.dickinson | 2009-12-19 11:07:23 +0000 (Sat, 19 Dec 2009) | 3 lines

  Issue #3366: Add error function and complementary error function to
  math module.
........
 2009-12-19 11:20:49 +00:00
Mark Dickinson 664b511c0a Merged revisions 76861 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76861 | mark.dickinson | 2009-12-16 20:13:40 +0000 (Wed, 16 Dec 2009) | 3 lines

  Issue #3366: Add expm1 function to math module.  Thanks Eric Smith for
  testing on Windows.
........
 2009-12-16 20:23:42 +00:00
Mark Dickinson 05d2e08401 Merged revisions 76755 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76755 | mark.dickinson | 2009-12-11 17:29:33 +0000 (Fri, 11 Dec 2009) | 2 lines

  Issue #3366:  Add lgamma function to math module.
........
 2009-12-11 20:17:17 +00:00
Georg Brandl 495f7b5adb Merged revisions 75365,75394,75402-75403,75418,75459,75484,75592-75596,75600,75602-75607,75610-75613,75616-75617,75623,75627,75640,75647,75696,75795 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75365 | georg.brandl | 2009-10-11 22:16:16 +0200 (So, 11 Okt 2009) | 1 line

  Fix broken links found by "make linkcheck".  scipy.org seems to be done right now, so I could not verify links going there.
........
  r75394 | georg.brandl | 2009-10-13 20:10:59 +0200 (Di, 13 Okt 2009) | 1 line

  Fix markup.
........
  r75402 | georg.brandl | 2009-10-14 17:51:48 +0200 (Mi, 14 Okt 2009) | 1 line

  #7125: fix typo.
........
  r75403 | georg.brandl | 2009-10-14 17:57:46 +0200 (Mi, 14 Okt 2009) | 1 line

  #7126: os.environ changes *do* take effect in subprocesses started with os.system().
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  r75418 | georg.brandl | 2009-10-14 20:48:32 +0200 (Mi, 14 Okt 2009) | 1 line

  #7116: str.join() takes an iterable.
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  r75459 | georg.brandl | 2009-10-17 10:57:43 +0200 (Sa, 17 Okt 2009) | 1 line

  Fix refleaks in _ctypes PyCSimpleType_New, which fixes the refleak seen in test___all__.
........
  r75484 | georg.brandl | 2009-10-18 09:58:12 +0200 (So, 18 Okt 2009) | 1 line

  Fix missing word.
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  r75592 | georg.brandl | 2009-10-22 09:05:48 +0200 (Do, 22 Okt 2009) | 1 line

  Fix punctuation.
........
  r75593 | georg.brandl | 2009-10-22 09:06:49 +0200 (Do, 22 Okt 2009) | 1 line

  Revert unintended change.
........
  r75594 | georg.brandl | 2009-10-22 09:56:02 +0200 (Do, 22 Okt 2009) | 1 line

  Fix markup.
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  r75595 | georg.brandl | 2009-10-22 09:56:56 +0200 (Do, 22 Okt 2009) | 1 line

  Fix duplicate target.
........
  r75596 | georg.brandl | 2009-10-22 10:05:04 +0200 (Do, 22 Okt 2009) | 1 line

  Add a new directive marking up implementation details and start using it.
........
  r75600 | georg.brandl | 2009-10-22 13:01:46 +0200 (Do, 22 Okt 2009) | 1 line

  Make it more robust.
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  r75602 | georg.brandl | 2009-10-22 13:28:06 +0200 (Do, 22 Okt 2009) | 1 line

  Document new directive.
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  r75603 | georg.brandl | 2009-10-22 13:28:23 +0200 (Do, 22 Okt 2009) | 1 line

  Allow short form with text as argument.
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  r75604 | georg.brandl | 2009-10-22 13:36:50 +0200 (Do, 22 Okt 2009) | 1 line

  Fix stylesheet for multi-paragraph impl-details.
........
  r75605 | georg.brandl | 2009-10-22 13:48:10 +0200 (Do, 22 Okt 2009) | 1 line

  Use "impl-detail" directive where applicable.
........
  r75606 | georg.brandl | 2009-10-22 17:00:06 +0200 (Do, 22 Okt 2009) | 1 line

  #6324: membership test tries iteration via __iter__.
........
  r75607 | georg.brandl | 2009-10-22 17:04:09 +0200 (Do, 22 Okt 2009) | 1 line

  #7088: document new functions in signal as Unix-only.
........
  r75610 | georg.brandl | 2009-10-22 17:27:24 +0200 (Do, 22 Okt 2009) | 1 line

  Reorder __slots__ fine print and add a clarification.
........
  r75611 | georg.brandl | 2009-10-22 17:42:32 +0200 (Do, 22 Okt 2009) | 1 line

  #7035: improve docs of the various <method>_errors() functions, and give them docstrings.
........
  r75612 | georg.brandl | 2009-10-22 17:52:15 +0200 (Do, 22 Okt 2009) | 1 line

  #7156: document curses as Unix-only.
........
  r75613 | georg.brandl | 2009-10-22 17:54:35 +0200 (Do, 22 Okt 2009) | 1 line

  #6977: getopt does not support optional option arguments.
........
  r75616 | georg.brandl | 2009-10-22 18:17:05 +0200 (Do, 22 Okt 2009) | 1 line

  Add proper references.
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  r75617 | georg.brandl | 2009-10-22 18:20:55 +0200 (Do, 22 Okt 2009) | 1 line

  Make printout margin important.
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  r75623 | georg.brandl | 2009-10-23 10:14:44 +0200 (Fr, 23 Okt 2009) | 1 line

  #7188: fix optionxform() docs.
........
  r75627 | fred.drake | 2009-10-23 15:04:51 +0200 (Fr, 23 Okt 2009) | 2 lines

  add further note about what's passed to optionxform
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  r75640 | neil.schemenauer | 2009-10-23 21:58:17 +0200 (Fr, 23 Okt 2009) | 2 lines

  Improve some docstrings in the 'warnings' module.
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  r75647 | georg.brandl | 2009-10-24 12:04:19 +0200 (Sa, 24 Okt 2009) | 1 line

  Fix markup.
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  r75696 | georg.brandl | 2009-10-25 21:25:43 +0100 (So, 25 Okt 2009) | 1 line

  Fix a demo.
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  r75795 | georg.brandl | 2009-10-27 16:10:22 +0100 (Di, 27 Okt 2009) | 1 line

  Fix a strange mis-edit.
........
 2009-10-27 15:28:25 +00:00
Mark Dickinson 56e0966afa Fix versionadded for py3k math.gamma 2009-10-01 16:13:29 +00:00
Mark Dickinson 12c4bdb0e8 Merged revisions 75117 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75117 | mark.dickinson | 2009-09-28 19:54:55 +0100 (Mon, 28 Sep 2009) | 3 lines

  Issue #3366:  Add gamma function to math module.
  (lgamma, erf and erfc to follow).
........
 2009-09-28 19:21:11 +00:00
Georg Brandl a6053b4846 Merged revisions 74542,74544-74548,74550,74554-74555,74578,74588,74590,74603,74616-74618,74621 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r74542 | georg.brandl | 2009-08-23 23:28:56 +0200 (So, 23 Aug 2009) | 1 line

  Restore alphabetic order.
........
  r74544 | georg.brandl | 2009-08-24 19:12:30 +0200 (Mo, 24 Aug 2009) | 1 line

  #6775: fix python.org URLs in README.
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  r74545 | georg.brandl | 2009-08-24 19:14:29 +0200 (Mo, 24 Aug 2009) | 1 line

  #6772: mention utf-8 as utf8 alias.
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  r74546 | georg.brandl | 2009-08-24 19:20:40 +0200 (Mo, 24 Aug 2009) | 1 line

  #6725: spell "namespace" consistently.
........
  r74547 | georg.brandl | 2009-08-24 19:22:05 +0200 (Mo, 24 Aug 2009) | 1 line

  #6718: fix example.
........
  r74548 | georg.brandl | 2009-08-24 19:24:27 +0200 (Mo, 24 Aug 2009) | 1 line

  #6677: mention "deleting" as an alias for removing files.
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  r74550 | georg.brandl | 2009-08-24 19:48:40 +0200 (Mo, 24 Aug 2009) | 1 line

  #6677: note that rmdir only removes empty directories.
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  r74554 | georg.brandl | 2009-08-27 20:59:02 +0200 (Do, 27 Aug 2009) | 1 line

  Typo fix.
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  r74555 | georg.brandl | 2009-08-27 21:02:43 +0200 (Do, 27 Aug 2009) | 1 line

  #6787: reference fix.
........
  r74578 | tarek.ziade | 2009-08-29 15:33:21 +0200 (Sa, 29 Aug 2009) | 1 line

  fixed #6801: symmetric_difference_update also accepts pipe
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  r74588 | georg.brandl | 2009-08-30 10:35:01 +0200 (So, 30 Aug 2009) | 1 line

  #6803: fix old name.
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  r74590 | georg.brandl | 2009-08-30 13:51:53 +0200 (So, 30 Aug 2009) | 1 line

  #6801: fix copy-paste oversight.
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  r74603 | georg.brandl | 2009-08-31 08:38:29 +0200 (Mo, 31 Aug 2009) | 1 line

  other -> others where multiple arguments are accepted.
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  r74616 | georg.brandl | 2009-09-01 09:46:26 +0200 (Di, 01 Sep 2009) | 1 line

  #6808: clarification.
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  r74617 | georg.brandl | 2009-09-01 09:53:37 +0200 (Di, 01 Sep 2009) | 1 line

  #6765: hint that log(x, base) is not very sophisticated.
........
  r74618 | georg.brandl | 2009-09-01 10:00:47 +0200 (Di, 01 Sep 2009) | 1 line

  #6810: add a link to the section about frame objects instead of just a description where to find it.
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  r74621 | georg.brandl | 2009-09-01 10:06:03 +0200 (Di, 01 Sep 2009) | 1 line

  #6638: fix wrong parameter name and markup a class.
........
 2009-09-01 08:11:14 +00:00