Commit Graph

162 Commits

Author SHA1 Message Date
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
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
Serhiy Storchaka c2ccce791c Issue #23641: Cleaned out legacy dunder names from tests and docs.
Fixed 2 to 3 porting bug in pynche.ColorDB.
Added few tests for __truediv__, __floordiv__ and __matmul__.
2015-03-12 22:01:30 +02:00
Serhiy Storchaka a60c2fe480 Issue #23641: Cleaned out legacy dunder names from tests and docs.
Fixed 2 to 3 porting bug in pynche.ColorDB.
2015-03-12 21:56:08 +02:00
Mark Dickinson cc8617b93a Issue #21092: Merge from 3.4. 2015-01-11 13:22:44 +00:00
Mark Dickinson dfe0b2326b Issue #21902: Replace incorrect 'hyperbolic arc sine' (etc.) with 'inverse hyperbolic sine' (etc.). Remove meaningless reference to radians. 2015-01-11 13:08:05 +00:00
Mark Dickinson a5d0c7c2fd Issue #23185: add math.inf and math.nan constants. 2015-01-11 11:55:29 +00:00
Victor Stinner 049e509a9f Issue #22207: Fix "comparison between signed and unsigned integers" warning in
test checking for integer overflow on Py_ssize_t type: cast explicitly to
size_t.
2014-08-17 22:20:00 +02:00
Mark Dickinson 5990d2864c Issue #20539: Improve math.factorial error messages and types for large inputs.
- Better message for the OverflowError in large positive inputs.
- Changed exception type from OverflowError to ValueError for large negative inputs.
2014-04-10 09:29:39 -04:00
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 9594942716 Issue #18783: Removed existing mentions of Python long type in docstrings,
error messages and comments.
2013-08-27 19:40:23 +03:00
Mark Dickinson 039e0cdc28 Issue #16305: Merge fix from 3.2. 2012-10-25 10:47:46 +01:00
Mark Dickinson 76464494bc Fix math.factorial KeyboardInterrupt segfault. Thanks Amaury for report and diagnosis. 2012-10-25 10:46:28 +01:00
Benjamin Peterson 7d74b70e51 merge 3.2 2012-03-13 16:13:35 -05:00
Benjamin Peterson 2354a7593f fix indentation 2012-03-13 16:13:09 -05:00
Benjamin Peterson ce79852077 use the static identifier api for looking up special methods
I had to move the static identifier code from unicodeobject.h to object.h in
order for this to work.
2012-01-22 11:24:29 -05:00
Victor Stinner 639418812f Use the new Py_ARRAY_LENGTH macro 2011-09-29 00:42:28 +02:00
Mark Dickinson 50203a69b3 Return +-Py_HUGE_VAL for tgamma(+-0) instead of risking FP exceptions by computing 1.0 / 0.0. 2011-09-25 15:26:43 +01:00
Victor Stinner 8f9f8d612a Issue #11888: Use system log2() when available
I expect the system libc to use more accurate functions than Python. The GNU
libc uses for example FYL2X and FYL2XP1 hardware instructions on Intel FPU.
2011-05-09 12:45:41 +02:00
Mark Dickinson 83b8c0be93 Grammatical fix for a comment for log2, to avoid referring to an *algorithm* as monotonic. 2011-05-09 08:40:20 +01:00
Mark Dickinson 23442584f4 Fix cut-and-paste typo in comment: log10 -> log2. 2011-05-09 08:05:00 +01:00
Victor Stinner fa0e3d52d6 Issue #11888: Add log2 function to math module. Patch written by Mark
Dickinson.
2011-05-09 01:01:09 +02:00
Jesus Cea 736e7fc0f6 Issue #11495: OSF support is eliminated. It was deprecated in Python 3.2 2011-03-14 17:36:54 +01:00
Mark Dickinson c60371748b Issue #9599: Further accuracy tweaks to loghelper. For an integer n that's small enough to be converted to a float without overflow, log(n) is now computed as log(float(n)), and similarly for log10. 2010-09-29 19:06:36 +00:00
Mark Dickinson fa41e60c9d Issue #9599: Tweak loghelper algorithm to return slightly improved results for powers of 2. 2010-09-28 07:22:27 +00:00
Mark Dickinson 226f544caa Improve docstrings for isnan, isinf and isfinite. 2010-07-11 18:13:41 +00:00
Mark Dickinson 8e0c996873 Issue #9165: Add math.isfinite and cmath.isfinite. 2010-07-11 17:38:24 +00:00
Ezio Melotti 9527afd02c Fix typo in a comment in mathmodule.c. 2010-07-08 15:03:02 +00:00
Mark Dickinson be64d95169 Issue #9186: log1p(-1.0) should raise ValueError, not OverflowError. 2010-07-07 16:21:29 +00:00
Mark Dickinson 9c91eb844c Minor refactoring in lgamma code, for clarity. 2010-07-07 16:17:31 +00:00
Mark Dickinson 6d02d9cc6b Style/consistency nit: make math_floor and math_ceil code look the same. 2010-07-02 16:05:15 +00:00
Benjamin Peterson f751bc9c01 fix lookup of __ceil__ 2010-07-02 13:46:42 +00:00
Benjamin Peterson b0125892e6 account for different ref counting semantics of _PyObject_LookupSpecial 2010-07-02 13:35:17 +00:00
Benjamin Peterson 8bb9cde6c0 correctly lookup __trunc__ and __floor__ 2010-07-01 15:16:55 +00:00
Mark Dickinson fdb0accc31 Merged revisions 82221 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r82221 | mark.dickinson | 2010-06-25 21:19:48 +0100 (Fri, 25 Jun 2010) | 1 line

  Fix indentation of Python code example in C comment.
........
2010-06-25 20:22:24 +00:00
Mark Dickinson bcdf9da265 Merged revisions 81967 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81967 | mark.dickinson | 2010-06-13 11:50:29 +0100 (Sun, 13 Jun 2010) | 4 lines

  Issue #8986: erfc was raising OverflowError on Linux for arguments in
  the (approximate) range (-27.3, 30.0), as a result of an escaped errno
  value.
........
2010-06-13 10:52:38 +00:00
Mark Dickinson 4c8a9a2df3 Issue #8692: Improve performance of math.factorial:
(1) use a different algorithm that roughly halves the total number of
    multiplications required and results in more balanced multiplications
(2) use a lookup table for small arguments
(3) fast accumulation of products in C integer arithmetic rather than
    PyLong arithmetic when possible.

Typical speedup, from unscientific testing on a 64-bit laptop, is 4.5x
to 6.5x for arguments in the range 100 - 10000.

Patch by Daniel Stutzbach; extensive reviews by Alexander Belopolsky.
2010-05-15 17:02:38 +00:00
Antoine Pitrou f95a1b3c53 Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

  Untabify C files. Will watch buildbots.
........
2010-05-09 15:52:27 +00:00
Mark Dickinson fbbb9bdeff Merged revisions 77275 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77275 | mark.dickinson | 2010-01-03 12:03:03 +0000 (Sun, 03 Jan 2010) | 1 line

  Make use of PyLong_AsLongAndOverflow in math_ldexp.
........
2010-01-03 12:16:06 +00:00
Mark Dickinson 6ecd9e53ce Merged revisions 77234 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77234 | mark.dickinson | 2010-01-02 14:45:40 +0000 (Sat, 02 Jan 2010) | 7 lines

  Refactor some longobject internals:  PyLong_AsDouble and _PyLong_AsScaledDouble
  (the latter renamed to _PyLong_Frexp) now use the same core code.  The
  exponent produced by _PyLong_Frexp now has type Py_ssize_t instead of the
  previously used int, and no longer needs scaling by PyLong_SHIFT.  This
  frees the math module from having to know anything about the PyLong
  implementation.  This closes issue #5576.
........
2010-01-02 15:33:56 +00:00
Mark Dickinson f371859a4f Merged revisions 76978 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76978 | mark.dickinson | 2009-12-21 15:22:00 +0000 (Mon, 21 Dec 2009) | 3 lines

  Issue #7518:  Move substitute definitions of C99 math functions from
  pymath.c to Modules/_math.c.
........
2009-12-21 15:27:41 +00:00
Mark Dickinson da39dbffb6 Merged revisions 76916 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76916 | mark.dickinson | 2009-12-20 13:58:18 +0000 (Sun, 20 Dec 2009) | 3 lines

  math.factorial depends on PyLong_AsLong correctly converting floats; rewrite
  it to do the conversion explicitly instead.  See issue #7550.
........
2009-12-20 14:07:47 +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
Benjamin Peterson a0dfa82eca Merged revisions 75149,75260-75263,75265-75267,75292,75300,75376,75405,75429-75433,75437,75445,75501,75551,75572,75589-75591,75657,75742,75868,75952-75957,76057,76105,76139,76143,76162,76223 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r75149 | gregory.p.smith | 2009-09-29 16:56:31 -0500 (Tue, 29 Sep 2009) | 3 lines

  Mention issue6972 in extractall docs about overwriting things outside of
  the supplied path.
........
  r75260 | andrew.kuchling | 2009-10-05 16:24:20 -0500 (Mon, 05 Oct 2009) | 1 line

  Wording fix
........
  r75261 | andrew.kuchling | 2009-10-05 16:24:35 -0500 (Mon, 05 Oct 2009) | 1 line

  Fix narkup
........
  r75262 | andrew.kuchling | 2009-10-05 16:25:03 -0500 (Mon, 05 Oct 2009) | 1 line

  Document 'skip' parameter to constructor
........
  r75263 | andrew.kuchling | 2009-10-05 16:25:35 -0500 (Mon, 05 Oct 2009) | 1 line

  Note side benefit of socket.create_connection()
........
  r75265 | andrew.kuchling | 2009-10-05 17:31:11 -0500 (Mon, 05 Oct 2009) | 1 line

  Reword sentence
........
  r75266 | andrew.kuchling | 2009-10-05 17:32:48 -0500 (Mon, 05 Oct 2009) | 1 line

  Use standard comma punctuation; reword some sentences in the docs
........
  r75267 | andrew.kuchling | 2009-10-05 17:42:56 -0500 (Mon, 05 Oct 2009) | 1 line

  Backport r73983: Document the thousands separator.
........
  r75292 | benjamin.peterson | 2009-10-08 22:11:36 -0500 (Thu, 08 Oct 2009) | 1 line

  death to old CVS keyword
........
  r75300 | benjamin.peterson | 2009-10-09 16:48:14 -0500 (Fri, 09 Oct 2009) | 1 line

  fix some coding style
........
  r75376 | benjamin.peterson | 2009-10-11 20:26:07 -0500 (Sun, 11 Oct 2009) | 1 line

  platform we don't care about
........
  r75405 | neil.schemenauer | 2009-10-14 12:17:14 -0500 (Wed, 14 Oct 2009) | 4 lines

  Issue #1754094: Improve the stack depth calculation in the compiler.
  There should be no other effect than a small decrease in memory use.
  Patch by Christopher Tur Lesniewski-Laas.
........
  r75429 | benjamin.peterson | 2009-10-14 20:47:28 -0500 (Wed, 14 Oct 2009) | 1 line

  pep8ify if blocks
........
  r75430 | benjamin.peterson | 2009-10-14 20:49:37 -0500 (Wed, 14 Oct 2009) | 1 line

  use floor division and add a test that exercises the tabsize codepath
........
  r75431 | benjamin.peterson | 2009-10-14 20:56:25 -0500 (Wed, 14 Oct 2009) | 1 line

  change test to what I intended
........
  r75432 | benjamin.peterson | 2009-10-14 22:05:39 -0500 (Wed, 14 Oct 2009) | 1 line

  some cleanups
........
  r75433 | benjamin.peterson | 2009-10-14 22:06:55 -0500 (Wed, 14 Oct 2009) | 1 line

  make inspect.isabstract() always return a boolean; add a test for it, too #7069
........
  r75437 | benjamin.peterson | 2009-10-15 10:44:46 -0500 (Thu, 15 Oct 2009) | 1 line

  only clear a module's __dict__ if the module is the only one with a reference to it #7140
........
  r75445 | vinay.sajip | 2009-10-16 09:06:44 -0500 (Fri, 16 Oct 2009) | 1 line

  Issue #7120: logging: Removed import of multiprocessing which is causing crash in GAE.
........
  r75501 | antoine.pitrou | 2009-10-18 13:37:11 -0500 (Sun, 18 Oct 2009) | 3 lines

  Add a comment about unreachable code, and fix a typo
........
  r75551 | benjamin.peterson | 2009-10-19 22:14:10 -0500 (Mon, 19 Oct 2009) | 1 line

  use property api
........
  r75572 | benjamin.peterson | 2009-10-20 16:55:17 -0500 (Tue, 20 Oct 2009) | 1 line

  clarify buffer arg #7178
........
  r75589 | benjamin.peterson | 2009-10-21 21:26:47 -0500 (Wed, 21 Oct 2009) | 1 line

  whitespace
........
  r75590 | benjamin.peterson | 2009-10-21 21:36:47 -0500 (Wed, 21 Oct 2009) | 1 line

  rewrite to be nice to other implementations
........
  r75591 | benjamin.peterson | 2009-10-21 21:50:38 -0500 (Wed, 21 Oct 2009) | 4 lines

  rewrite for style, clarify, and comments

  Also, use the hasattr() like scheme of allowing BaseException exceptions through.
........
  r75657 | antoine.pitrou | 2009-10-24 07:41:27 -0500 (Sat, 24 Oct 2009) | 3 lines

  Fix compilation error in debug mode.
........
  r75742 | benjamin.peterson | 2009-10-26 17:51:16 -0500 (Mon, 26 Oct 2009) | 1 line

  use 'is' instead of id()
........
  r75868 | benjamin.peterson | 2009-10-27 15:59:18 -0500 (Tue, 27 Oct 2009) | 1 line

  test expect base classes
........
  r75952 | georg.brandl | 2009-10-29 15:38:32 -0500 (Thu, 29 Oct 2009) | 1 line

  Use the correct function name in docstring.
........
  r75953 | georg.brandl | 2009-10-29 15:39:50 -0500 (Thu, 29 Oct 2009) | 1 line

  Remove mention of the old -X command line switch.
........
  r75954 | georg.brandl | 2009-10-29 15:53:00 -0500 (Thu, 29 Oct 2009) | 1 line

  Use constants instead of magic integers for test result.  Do not re-run with --verbose3 for environment changing tests.
........
  r75955 | georg.brandl | 2009-10-29 15:54:03 -0500 (Thu, 29 Oct 2009) | 1 line

  Use a single style for all the docstrings in the math module.
........
  r75956 | georg.brandl | 2009-10-29 16:16:34 -0500 (Thu, 29 Oct 2009) | 1 line

  I do not think the "railroad" program mentioned is still available.
........
  r75957 | georg.brandl | 2009-10-29 16:44:56 -0500 (Thu, 29 Oct 2009) | 1 line

  Fix constant name.
........
  r76057 | benjamin.peterson | 2009-11-02 09:06:45 -0600 (Mon, 02 Nov 2009) | 1 line

  prevent a rather unlikely segfault
........
  r76105 | georg.brandl | 2009-11-04 01:38:12 -0600 (Wed, 04 Nov 2009) | 1 line

  #7259: show correct equivalent for operator.i* operations in docstring; fix minor issues in operator docs.
........
  r76139 | benjamin.peterson | 2009-11-06 19:04:38 -0600 (Fri, 06 Nov 2009) | 1 line

  spelling
........
  r76143 | georg.brandl | 2009-11-07 02:26:07 -0600 (Sat, 07 Nov 2009) | 1 line

  #7271: fix typo.
........
  r76162 | benjamin.peterson | 2009-11-08 22:10:53 -0600 (Sun, 08 Nov 2009) | 1 line

  discuss how to use -p
........
  r76223 | georg.brandl | 2009-11-12 02:29:46 -0600 (Thu, 12 Nov 2009) | 1 line

  Give the profile module a module directive.
........
2009-11-13 02:25:08 +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
Benjamin Peterson 6ebe78f5cc Merged revisions 67654,67676-67677,67681,67692,67725,67761,67784-67785,67787-67788,67802,67848-67850,67862-67864,67880,67882 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r67654 | georg.brandl | 2008-12-07 16:42:09 -0600 (Sun, 07 Dec 2008) | 2 lines

  #4457: rewrite __import__() documentation.
........
  r67676 | benjamin.peterson | 2008-12-08 20:03:03 -0600 (Mon, 08 Dec 2008) | 1 line

  specify how things are copied
........
  r67677 | benjamin.peterson | 2008-12-08 20:05:11 -0600 (Mon, 08 Dec 2008) | 1 line

  revert unrelated change to installer script
........
  r67681 | jeremy.hylton | 2008-12-09 15:03:10 -0600 (Tue, 09 Dec 2008) | 2 lines

  Add simple unittests for Request
........
  r67692 | amaury.forgeotdarc | 2008-12-10 18:03:42 -0600 (Wed, 10 Dec 2008) | 2 lines

  #1030250: correctly pass the dry_run option to the mkpath() function.
........
  r67725 | benjamin.peterson | 2008-12-12 22:02:20 -0600 (Fri, 12 Dec 2008) | 1 line

  fix incorrect example
........
  r67761 | benjamin.peterson | 2008-12-14 11:26:04 -0600 (Sun, 14 Dec 2008) | 1 line

  fix missing bracket
........
  r67784 | georg.brandl | 2008-12-15 02:33:58 -0600 (Mon, 15 Dec 2008) | 2 lines

  #4446: document "platforms" argument for setup().
........
  r67785 | georg.brandl | 2008-12-15 02:36:11 -0600 (Mon, 15 Dec 2008) | 2 lines

  #4611: fix typo.
........
  r67787 | georg.brandl | 2008-12-15 02:58:59 -0600 (Mon, 15 Dec 2008) | 2 lines

  #4578: fix has_key() usage in compiler package.
........
  r67788 | georg.brandl | 2008-12-15 03:07:39 -0600 (Mon, 15 Dec 2008) | 2 lines

  #4568: remove limitation in varargs callback example.
........
  r67802 | amaury.forgeotdarc | 2008-12-15 16:29:14 -0600 (Mon, 15 Dec 2008) | 4 lines

  #3632: the "pyo" macro from gdbinit can now run when the GIL is released.

  Patch by haypo.
........
  r67848 | benjamin.peterson | 2008-12-18 20:28:56 -0600 (Thu, 18 Dec 2008) | 1 line

  fix typo
........
  r67849 | benjamin.peterson | 2008-12-18 20:31:35 -0600 (Thu, 18 Dec 2008) | 1 line

  _call_method -> _callmethod and _get_value to _getvalue
........
  r67850 | raymond.hettinger | 2008-12-19 03:06:07 -0600 (Fri, 19 Dec 2008) | 9 lines

  Fix-up and clean-up docs for int.bit_length().

  * Replace dramatic footnote with in-line comment about possible round-off errors in logarithms of large numbers.
  * Add comments to the pure python code equivalent.
  * replace floor() with int() in the mathematical equivalent so the type is correct (should be an int, not a float).
  * add abs() to the mathematical equivalent so that it matches the previous line that it is supposed to be equivalent to.
  * make one combined example with a negative input.
........
  r67862 | benjamin.peterson | 2008-12-19 20:48:02 -0600 (Fri, 19 Dec 2008) | 1 line

  copy sentence from docstring
........
  r67863 | benjamin.peterson | 2008-12-19 20:51:26 -0600 (Fri, 19 Dec 2008) | 1 line

  add headings
........
  r67864 | benjamin.peterson | 2008-12-19 20:57:19 -0600 (Fri, 19 Dec 2008) | 1 line

  beef up docstring
........
  r67880 | benjamin.peterson | 2008-12-20 16:49:24 -0600 (Sat, 20 Dec 2008) | 1 line

  remove redundant sentence
........
  r67882 | benjamin.peterson | 2008-12-20 16:59:49 -0600 (Sat, 20 Dec 2008) | 1 line

  add some recent releases to the list
........
2008-12-21 00:06:59 +00:00
Mark Dickinson e675f08e03 Merged revisions 67707 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r67707 | mark.dickinson | 2008-12-11 19:28:08 +0000 (Thu, 11 Dec 2008) | 5 lines

  Issues #3167, #3682: tests for math.log and math.log10 were failing on
  Solaris and OpenBSD.  Fix this by handling special values and domain
  errors directly in mathmodule.c, passing only positive nonspecial floats
  to the system log/log10.
........
2008-12-11 21:56:00 +00:00