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crlibm-1.0.3
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مشاهده بیشترتوضیحات
Python bindings for CRlibm, an efficient and proven correctly-rounded mathematical library
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | crlibm-1.0.3 |
| نام | crlibm |
| نسخه کتابخانه | 1.0.3 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Stefano Taschini |
| ایمیل نویسنده | taschini@gmail.com |
| آدرس صفحه اصلی | https://github.com/taschini/pycrlibm |
| آدرس اینترنتی | https://pypi.org/project/crlibm/ |
| مجوز | LGPLv2+ |
PyCRlibm - Python bindings for CRlibm
=====================================
.. container:: badges
.. image:: https://img.shields.io/travis/taschini/pycrlibm/master.svg?label=Linux%20build
:target: https://travis-ci.org/taschini/pycrlibm
:alt: Travis CI build status (Linux)
.. image:: https://img.shields.io/appveyor/ci/taschini/pycrlibm/master.svg?label=Windows%20build
:target: https://ci.appveyor.com/project/taschini/pycrlibm
:alt: AppVeyor CI build status (Windows)
.. image:: https://img.shields.io/pypi/v/crlibm.svg
:target: https://pypi.python.org/pypi/crlibm/
:alt: Latest PyPI version
.. image:: https://readthedocs.org/projects/pycrlibm/badge/?version=latest
:target: http://pycrlibm.readthedocs.org/?badge=latest
:alt: Documentation Status
Python bindings for `CRlibm
<http://lipforge.ens-lyon.fr/www/crlibm>`_, an efficient and proven
correctly-rounded mathematical library.
CRlibm is a free mathematical library (libm) which provides:
* implementations of the double-precision C99 standard elementary
functions,
* correctly rounded in the four IEEE-754 rounding modes,
* with a comprehensive proof of both the algorithms used and their
implementation,
* sufficiently efficient in average time, worst-case time, and
memory consumption to replace existing libms transparently.
Installation
------------
At the command line::
$ pip install crlibm
On Microsoft Windows ``pip`` will try first to download a binary
archive in *wheel* format, and if no such a *wheel* can be found for
your Python version, ``pip`` will try to compile the library. In
order to do so, it is strongly recommended to have `MinGW-w64
<http://mingw-w64.org>`_ installed under `MSYS2
<https://msys2.github.io>`_, for instance by following the
instructions in `<http://stackoverflow.com/a/30071634>`_.
Usage
-----
In Python::
>>> import crlibm
>>> crlibm.exp_ru(1)
2.7182818284590455
>>> crlibm.exp_rd(1)
2.718281828459045
Features
--------
* This project provides the bindings for the functions in the following table:
+----------------+------------------+------------------+--------------------+------------+
| f(x) | Round to nearest | Round up (to +∞) | Round down (to -∞) | Round to 0 |
+----------------+------------------+------------------+--------------------+------------+
| **Exponentials and logarithms** |
+----------------+------------------+------------------+--------------------+------------+
| exp(x) | exp_rn | exp_ru | exp_rd | exp_rz |
+----------------+------------------+------------------+--------------------+------------+
| exp(x)-1 | expm1_rn | expm1_ru | expm1_rd | expm1_rz |
+----------------+------------------+------------------+--------------------+------------+
| log(x) | log_rn | log_ru | log_rd | log_rz |
+----------------+------------------+------------------+--------------------+------------+
| log(1+x) | log1p_rn | log1p_ru | log1p_rd | log1p_rz |
+----------------+------------------+------------------+--------------------+------------+
| log(x)/log(2) | log2_rn | log2_ru | log2_rd | log2_rz |
+----------------+------------------+------------------+--------------------+------------+
| log(x)/log(10) | log10_rn | log10_ru | log10_rd | log10_rz |
+----------------+------------------+------------------+--------------------+------------+
| sinh(x) | sinh_rn | sinh_ru | sinh_rd | sinh_rz |
+----------------+------------------+------------------+--------------------+------------+
| cosh(x) | cosh_rn | cosh_ru | cosh_rd | cosh_rz |
+----------------+------------------+------------------+--------------------+------------+
| **Trigonometry** |
+----------------+------------------+------------------+--------------------+------------+
| sin(x) | sin_rn | sin_ru | sin_rd | sin_rz |
+----------------+------------------+------------------+--------------------+------------+
| cos(x) | cos_rn | cos_ru | cos_rd | cos_rz |
+----------------+------------------+------------------+--------------------+------------+
| tan(x) | tan_rn | tan_ru | tan_rd | tan_rz |
+----------------+------------------+------------------+--------------------+------------+
| asin(x) | asin_rn | asin_ru | asin_rd | asin_rz |
+----------------+------------------+------------------+--------------------+------------+
| acos(x) | acos_rn | acos_ru | acos_rd | acos_rz |
+----------------+------------------+------------------+--------------------+------------+
| atan(x) | atan_rn | atan_ru | atan_rd | atan_rz |
+----------------+------------------+------------------+--------------------+------------+
| **Trigonometry in multiples of π** |
+----------------+------------------+------------------+--------------------+------------+
| sin(π * x) | sinpi_rn | sinpi_ru | sinpi_rd | sinpi_rz |
+----------------+------------------+------------------+--------------------+------------+
| cos(π * x) | cospi_rn | cospi_ru | cospi_rd | cospi_rz |
+----------------+------------------+------------------+--------------------+------------+
| tan(π * x) | tanpi_rn | tanpi_ru | tanpi_rd | tanpi_rz |
+----------------+------------------+------------------+--------------------+------------+
| asin(x)/π | asinpi_rn | asinpi_ru | asinpi_rd | asinpi_rz |
+----------------+------------------+------------------+--------------------+------------+
| acos(x)/π | acospi_rn | acospi_ru | acospi_rd | acospi_rz |
+----------------+------------------+------------------+--------------------+------------+
| atan(x)/π | atanpi_rn | atanpi_ru | atanpi_rd | atanpi_rz |
+----------------+------------------+------------------+--------------------+------------+
* The function ``pow`` in CRlibm is not exported.
License
-------
Both the CRlibm library and the Python bindings are distributed under
the GNU Lesser General Public License as published by the Free
Software Foundation; either version `2.1
<http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html>`_ of the
License, or (at your option) any later version.
Authors
-------
David Defour, Catherine Daramy, Florent de Dinechin,
Matthieu Gallet, Nicolas Gast, Christoph Lauter, Jean-Michel Muller.
Python bindings by Stefano Taschini.
Links
-----
* Project home page: https://github.com/taschini/pycrlibm.
* Documentation: https://pycrlibm.readthedocs.io.
* Entry in the Python Package Index: https://pypi.python.org/pypi/crlibm.
* CRlibm home page: http://lipforge.ens-lyon.fr/www/crlibm.
* LGPL v2.1: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
History
-------
1.0.3 (2016-06-09)
^^^^^^^^^^^^^^^^^^
- Fixed the compilation with Python 3.5 on Windows.
1.0.2 (2016-06-06)
^^^^^^^^^^^^^^^^^^
- Added support for Python 3.
1.0.1 (2015-11-15)
^^^^^^^^^^^^^^^^^^
- Improvements to the build process on MS Windows;
- Automatic upload of release files to PyPI using Appveyor.
1.0.0 (2015-10-27)
^^^^^^^^^^^^^^^^^^
- Spun off these binding from `PyInterval
<https://github.com/taschini/pyinterval>`_, a project for interval
arithmetic in Python.
- First release on PyPI.
نحوه نصب
نصب پکیج whl crlibm-1.0.3:
pip install crlibm-1.0.3.whl
نصب پکیج tar.gz crlibm-1.0.3:
pip install crlibm-1.0.3.tar.gz