Raymond Hettinger
df8101517a
Speed-up math.dist() by 30% (GH-9628)
2018-09-29 14:30:38 -07:00
Pablo Galindo
e9ba3705de
bpo-33083 - Make math.factorial reject arguments that are not int-like (GH-6149)
...
math.factorial() was accepting non-integral Decimal instances. This is inconsistent with the actual behaviour for floats, which are not accepted.
2018-09-03 22:20:06 +01:00
Raymond Hettinger
f326714426
Minor improvement to code clarity (GH-9036)
...
Make it clear that the n==0 case is included. Otherwise, you have to know that max==0.0 whenever n==0.
2018-09-02 13:34:21 -07:00
Raymond Hettinger
745c0f3980
Simplify vector_norm() by eliminating special cases in the main loop (GH-9006)
...
The *max* value is no longer treated as a special case in the main loop. Besides making the main loop simpler and branchless, this also lets us relax the input restriction of *vec* to contain only non-negative values.
2018-08-31 11:22:13 -07:00
Raymond Hettinger
21786f5186
Improve commutativity of math.hypot() and math.dist() (GH-8984)
2018-08-28 22:47:24 -07:00
Raymond Hettinger
74734f73ca
Fast path for exact floats in math.hypot() and math.dist() (GH-8949)
2018-08-26 19:38:31 -05:00
Raymond Hettinger
a47f394af8
Minor code clean-up. Don't alter the input vector. Use variables instead. GH-8748
2018-08-12 14:18:56 -07:00
Raymond Hettinger
00414597b4
Add more tests and assertions for math.hypot() and math.dist() (GH-8747)
2018-08-12 12:15:23 -07:00
Raymond Hettinger
c630e10440
Factor-out common code. Also, optimize common cases by preallocating space on the stack. GH-8738
...
Improves speed by 9 to 10ns per call.
2018-08-11 18:39:05 -07:00
Raymond Hettinger
1399074535
Replace straight addition with Kahan summation and move max to the end (GH-8727)
2018-08-11 11:26:36 -07:00
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
Barry Warsaw
b2e5794870
bpo-31338 ( #3374 )
...
* Add Py_UNREACHABLE() as an alias to abort().
* Use Py_UNREACHABLE() instead of assert(0)
* Convert more unreachable code to use Py_UNREACHABLE()
* Document Py_UNREACHABLE() and a few other macros.
2017-09-14 18:13:16 -07:00
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
Louie Lu
7a26464c64
bpo-29946: Fix "sqrtpi defined but not used" ( #908 )
2017-03-30 20:05:10 +03:00
Serhiy Storchaka
4125e5c60e
bpo-26121: Revert to using the own implementations of lgamma and gamma on all platforms. ( #637 )
2017-03-12 14:08:06 +02:00
Serhiy Storchaka
97553fdf9d
bpo-26121: Use C library implementation for math functions: ( #515 )
...
* bpo-26121: Use C library implementation for math functions:
tgamma(), lgamma(), erf() and erfc().
* Don't use tgamma() and lgamma() from libc on OS X.
2017-03-11 21:37:16 +00:00
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
Serhiy Storchaka
c9ea933586
Issue #20186 : Converted the math module to Argument Clinic.
...
Patch by Tal Einat.
2017-01-19 18:13:09 +02:00
Victor Stinner
f17c3de263
Use _PyObject_CallNoArg()
...
Replace:
PyObject_CallFunctionObjArgs(callable, NULL)
with:
_PyObject_CallNoArg(callable)
2016-12-06 18:46:19 +01:00
Victor Stinner
de4ae3d486
Backed out changeset b9c9691c72c5
...
Issue #28858 : The change b9c9691c72c5 introduced a regression. It seems like
_PyObject_CallArg1() uses more stack memory than
PyObject_CallFunctionObjArgs().
2016-12-04 22:59:09 +01:00
Victor Stinner
27580c1fb5
Replace PyObject_CallFunctionObjArgs() with fastcall
...
* PyObject_CallFunctionObjArgs(func, NULL) => _PyObject_CallNoArg(func)
* PyObject_CallFunctionObjArgs(func, arg, NULL) => _PyObject_CallArg1(func, arg)
PyObject_CallFunctionObjArgs() allocates 40 bytes on the C stack and requires
extra work to "parse" C arguments to build a C array of PyObject*.
_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.
This change is part of the fastcall project. The change on listsort() is
related to the issue #23507 .
2016-12-01 14:43:22 +01:00
Raymond Hettinger
15f44ab043
Issue #27895 : Spelling fixes (Contributed by Ville Skyttä).
2016-08-30 10:47:49 -07:00
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
Martin Panter
18933ed6ab
Issue #26512 : Merge rounding doc from 3.5
2016-05-08 12:34:58 +00:00
Martin Panter
129fe04d4d
Issue #26512 : Clarify Integral; tidy up table of rounding functions
...
Based on patch by Julien.
2016-05-08 12:22:37 +00:00
Berker Peksag
a2570626c8
Issue #26898 : Fix typo in math.isclose() docstring
...
Patch by Marco Buttu.
2016-05-01 11:27:59 +03:00
Berker Peksag
d6e6f8b829
Issue #26898 : Fix typo in math.isclose() docstring
...
Patch by Marco Buttu.
2016-05-01 11:27:37 +03:00
Brett Cannon
2f1a0b6ad5
Merge for issue #26114
2016-01-15 09:39:06 -08:00
Brett Cannon
45adb3100b
Issue #26114 : Remove a reference to 'Numerical Recipes'.
...
While no copyright violation occurred, the license which
'Numerical Recipes' operates under is not amenable to Python,
so to prevent confusion it's easier to simply remove its mention.
2016-01-15 09:38:24 -08:00
Serhiy Storchaka
ef1585eb9a
Issue #25923 : Added more const qualifiers to signatures of static and private functions.
2015-12-25 20:01:53 +02:00
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
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
