36f6e2c9e0
Issue #18739 : Fix inconsistent results from math.log(n) and math.log(long(n))
2013-10-13 10:55:15 +01:00
32a16cac70
Fix indentation of Python code example in C comment.
2010-06-25 20:19:48 +00:00
e979ec8fbf
Issue #8986 : erfc was raising OverflowError on Linux for arguments in
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the (approximate) range (-27.3, 30.0), as a result of an escaped errno
value.
2010-06-13 10:50:29 +00:00
c83ea137d7
Untabify C files. Will watch buildbots.
2010-05-09 14:46:46 +00:00
f132c16199
Make use of PyLong_AsLongAndOverflow in math_ldexp.
2010-01-03 12:03:03 +00:00
d3e323215c
Refactor some longobject internals: PyLong_AsDouble and _PyLong_AsScaledDouble
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(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 14:45:40 +00:00
12748b003c
Issue #7518 : Move substitute definitions of C99 math functions from
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pymath.c to Modules/_math.c.
2009-12-21 15:22:00 +00:00
5698977186
math.factorial depends on PyLong_AsLong correctly converting floats; rewrite
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it to do the conversion explicitly instead. See issue #7550 .
2009-12-20 13:58:18 +00:00
5ff37ae14b
Issue #3366 : Add error function and complementary error function to
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math module.
2009-12-19 11:07:23 +00:00
9cae178f21
Issue #3366 : Add expm1 function to math module. Thanks Eric Smith for
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testing on Windows.
2009-12-16 20:13:40 +00:00
9be87bc992
Issue #3366 : Add lgamma function to math module.
2009-12-11 17:29:33 +00:00
a8f8bed203
Use a single style for all the docstrings in the math module.
2009-10-29 20:54:03 +00:00
40777e6606
Use the correct function name in docstring.
2009-10-29 20:38:32 +00:00
b93fff0a57
Issue #3366 : Add gamma function to math module.
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(lgamma, erf and erfc to follow).
2009-09-28 18:54:55 +00:00
9de7298102
remove redundant sentence
2008-12-20 22:49:24 +00:00
fed67fd41e
beef up docstring
2008-12-20 02:57:19 +00:00
4c96fa5525
Issues #3167 , #3682 : tests for math.log and math.log10 were failing on
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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 19:28:08 +00:00
ff3fdce0d2
Replace math.sum with math.fsum in a couple of comments
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that were missed by r65308
2008-07-30 16:25:16 +00:00
fef6b13c32
Rename math.sum to math.fsum
2008-07-30 16:20:10 +00:00
abe0aee3cf
Fix special-value handling for math.sum.
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Also minor cleanups to the code: fix tabbing, remove
trailing whitespace, and reformat to fit into 80
columns.
2008-07-30 12:01:41 +00:00
2fcd8c9703
Fix another typo in math_sum comment
2008-06-20 15:26:19 +00:00
5f198bee4e
Fix comment typos
2008-06-20 02:11:42 +00:00
2281da42b0
Fix double decref.
2008-06-18 00:56:57 +00:00
fb1c4b98e9
Issue 3118: make test_math pass on Ubuntu/ia64. exp(-745.0) was raising
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OverflowError incorrectly on this platform, presumably as a result of
the libm setting errno = ERANGE for this call.
2008-06-17 21:16:55 +00:00
d623414141
Unhappy buildbots. Revert 64052. Long doubles have unexpected effects on some builds.
2008-06-09 11:24:47 +00:00
7b1ed66372
Address double-rounding scenarios by setting all variables to long doubles.
2008-06-09 09:29:17 +00:00
ecbdd2e9b0
Issue #2138 : Add math.factorial().
2008-06-09 06:54:45 +00:00
ef712d6fd3
* Mark intermedidate computes values (hi, lo, yr) as volatile.
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* Expand comments.
* Swap variable names in the sum_exact code so that x and y
are consistently chosen as the larger and smaller magnitude
values respectively.
2008-05-30 18:20:50 +00:00
2a9179ac73
Fix two typos.
2008-05-29 08:38:23 +00:00
778d5cc4fb
Tweak the comments and formatting.
2008-05-23 04:32:43 +00:00
99dfe92759
Issue #2819 : Add math.sum, a function that sums a sequence of floats
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efficiently but with no intermediate loss of precision. Based on
Raymond Hettinger's ASPN recipe. Thanks Jean Brouwers for the patch.
2008-05-23 01:35:30 +00:00
f8476c1573
Issue #2487 . math.ldexp(x, n) raised OverflowError when n was large and
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negative; fix to return an (appropriately signed) zero instead.
2008-05-09 17:54:23 +00:00
0da94c8a34
Silence 'r may be used uninitialized' compiler warning.
2008-04-21 01:55:50 +00:00
92483cd8da
math.atan2 is misbehaving on Windows; this patch
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should fix the problem in the same way that
the cmath.phase problems were fixed.
2008-04-20 21:39:04 +00:00
cec3f138d8
Yet more explicit special case handling to make
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math.pow behave on alpha Tru64. All IEEE 754
special values are now handled directly; only
the finite**finite case is handled by libm.
2008-04-20 04:13:13 +00:00
b2f7090239
FreeBSD doesn't follow C99 for modf(inf); so add explicit
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special-value handling to math.modf code.
2008-04-20 01:39:24 +00:00
a1293eb65f
Additional special-case handling for math.pow.
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Windows/VS2008 doesn't like (-1)**(+-inf).
2008-04-19 19:41:52 +00:00
e941d97d12
Additional tests for math.pow, and extra special-case
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handling code in math.pow, in the hope of making all
tests pass on the alpha Tru64 buildbot.
2008-04-19 18:51:48 +00:00
6f34109384
I finally got the time to update and merge Mark's and my trunk-math branch. The patch is collaborated work of Mark Dickinson and me. It was mostly done a few months ago. The patch fixes a lot of loose ends and edge cases related to operations with NaN, INF, very small values and complex math.
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The patch also adds acosh, asinh, atanh, log1p and copysign to all platforms. Finally it fixes differences between platforms like different results or exceptions for edge cases. Have fun :)
2008-04-18 23:13:07 +00:00
fe424f754f
Neaten-up a bit.
2008-02-02 05:24:44 +00:00
ca2b69f765
Move __builtins__.trunc() to math.trunc() per
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http://mail.python.org/pipermail/python-dev/2008-January/076626.html and issue
1965.
2008-02-01 06:22:46 +00:00
543cabc842
setup.py doesn't pick up changes to a header file
2008-01-25 14:54:23 +00:00
5f95a79b2b
Add prototypes to get the mathmodule.c to compile on OSF1 5.1 (Tru64)
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and eliminate a compiler warning in floatobject.c. There might be
a better way to go about this, but it should be good enough for now.
2008-01-25 08:04:16 +00:00
9871d8fe22
Continue rolling back pep-3141 changes that changed behavior from 2.5. This
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round included:
* Revert round to its 2.6 behavior (half away from 0).
* Because round, floor, and ceil always return float again, it's no
longer necessary to have them delegate to __xxx___, so I've ripped
that out of their implementations and the Real ABC. This also helps
in implementing types that work in both 2.6 and 3.0: you return int
from the __xxx__ methods, and let it get enabled by the version
upgrade.
* Make pow(-1, .5) raise a ValueError again.
2008-01-05 08:47:13 +00:00
66ecda4990
Fixed math.copysign() on Windows
2008-01-04 01:48:50 +00:00
eebb79cc69
Added copysign(x, y) function to the math module
2008-01-03 22:32:26 +00:00
e2ca4245c9
Added math.isinf() and math.isnan()
2008-01-03 20:23:15 +00:00
2f3c16be73
Backport PEP 3141 from the py3k branch to the trunk. This includes r50877 (just
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the complex_pow part), r56649, r56652, r56715, r57296, r57302, r57359, r57361,
r57372, r57738, r57739, r58017, r58039, r58040, and r59390, and new
documentation. The only significant difference is that round(x) returns a float
to preserve backward-compatibility. See http://bugs.python.org/issue1689 .
2008-01-03 02:21:52 +00:00
45e230a8e1
Speed up function calls into the math module by using METH_O.
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There should be no functional changes. However, the error msgs are
slightly different. Also verified that the module dict is not NULL on init.
2006-11-19 21:26:53 +00:00
a355c14fa1
Whoops.
2006-05-29 22:00:30 +00:00
Mark Dickinson
Antoine Pitrou
Georg Brandl
Benjamin Peterson
Andrew M. Kuchling
Raymond Hettinger
Christian Heimes
Jeffrey Yasskin
Neal Norwitz