Upstream changes:
--0.18--
Released December 31, 2013
Linear algebra:
* added qr() for matrix QR factorization (contributed by Ken Allen)
* added functions eigsy(), eighe(), eig() to compute matrix
eigenvalues (contributed by Timo Hartmann)
* added functions svd(), svd_r(), svd_c() for singular value
decomposition of matrices (contributed by Timo Hartmann)
* added calculation of Gaussian quadrature rules for various weight
functions (contributed by Timo Hartmann)
* improved precision selection in exp_pade() (contributed by
Mario Pernici)
Special functions:
* fixed ellippi() to return an inf instead of raising an exception
* fixed a crash in zeta() with huge arguments
* added functions for computing Stirling numbers
(stirling1(), stirling2())
* improved the computation of zeros of zeta at high precision
(contributed by Juan Arias de Reyna)
* fixed zeta(-x) raising an exception for tiny x
* recognize when lerchphi() can call zeta() or polylog(),
handling those cases faster
Compatibility:
* fixed gmpy2 compatibility issues (contributed by Case Van Horsen)
* better solutions for python 2/3 compatibility,
using Benjamin Peterson's six.py
* fixes to allow mpmath to run in non-sage mode when sage is available
* support abstract base classes (contributed by Stefan Krastanov)
* use new-style classes to improve pypy performance
Other:
* added Levin, Sidi-S and Cohen/Villegas/Zagier series
transformations (contributed by Timo Hartmann)
* added isfinite() utility function
* fixed a problem with bisection root-finding
* fixed several documentation errors
* corrected number of coefficients returned by diffs() with
method='quad'
* fixed repr(constant) being slow at high precision
* made intervals hashable
either because they themselves are not ready or because a
dependency isn't. This is annotated by
PYTHON_VERSIONS_INCOMPATIBLE= 33 # not yet ported as of x.y.z
or
PYTHON_VERSIONS_INCOMPATIBLE= 33 # py-foo, py-bar
respectively, please use the same style for other packages,
and check during updates.
Use versioned_dependencies.mk where applicable.
Use REPLACE_PYTHON instead of handcoded alternatives, where applicable.
Reorder Makefile sections into standard order, where applicable.
Remove PYTHON_VERSIONS_INCLUDE_3X lines since that will be default
with the next commit.
Whitespace cleanups and other nits corrected, where necessary.
Remove devel/py-ctypes (only needed by and supporting python24).
Remove PYTHON_VERSIONS_ACCEPTED and PYTHON_VERSIONS_INCOMPATIBLE
lines that just mirror defaults now.
Miscellaneous cleanup while editing all these files.
per update request from Wen Heping by PR#42755.
Pkgsrc changes:
* Set LICENSE
* correct EOL style of installed files
* Add self-test target
Changes:
--0.14--
Released February 5, 2010
General changes:
* Fully separated the code into "low-level" and "high-level", permitting the
use of alternative contexts (the mpmath.mp object provides the default
implementation)
* Implemented a context for fast double-precision arithmetic using Python
types (mpmath.fp)
* Implemented hooks for importing a faster version of mp arithmetic from Sage
* Implemented optimized fp versions of certain functions (including erf, erfc,
gamma, digamma, ei, e1)
* Renamed and reorganized various internal modules and methods (including
merging low-level modules into mpmath.libmp). This should not affect most
external code using top-level imports.
Plotting:
* Implemented splot() for 3D surface plots (contributed by Jorn Baayen)
* Permit calling plot functions with custom axes (contributed by Jorn Baayen)
Matrices:
* Fixed lu_solve for overdetermined systems (contributed by Vinzent Steinberg)
* Added conjugate matrix transpose (contributed by Vinzent Steinberg)
* Implemented matrix functions (expm, cosm, sinm, sqrtm, logm, powm)
Miscellaneous:
* Prettier printing of numbers with leading zeros at small precisions
* Made nstr pass on kwargs, permitting more formatting options
* Fixed wrong directed rounding of addition of numbers with large magnitude
differences
* Fixed several docstring typos (contributed by Chris Smith)
* Fixed a bug that prevented caching of quadrature nodes to work optimally.
Special functions:
* Implemented fast evaluation for large imaginary heights of the Riemann zeta
function, Z function and derived functions using the Riemann-Siegel
(contributed by Juan Arias de Reyna)
* Unified the zeta() and hurwitz() functions, automatically selecting a fast
algorithm
* Improved altzeta() to fall back to zeta() for large arguments
* Fixed accuracy of zeta(s) for s ~= 1
* Implemented exact evaluation of Euler numbers (contributed by Juan Arias
de Reyna)
* Implemented numerical evaluation of Euler numbers and Euler polynomials
(eulernum(), eulerpoly())
* Fixed bernpoly() and eulerpoly() to compute accurate values for large
parameters
* Fixed accuracy problems for hypergeometric functions with large parameters
* Faster evaluation of hypergeometric series using on-the-fly code generation
* Optimized hypercomb to detect certain zero terms symbolically
* Removed the djtheta function (jtheta() accepts a derivative parameter)
* Implemented li(x, offset=True) to compute the offset logarithmic integral
* Fixed wrong branch in Lambert W function for certain complex inputs
* Implemented the reflection formula for the Barnes G-function,
superfactorials, hyperfactorials, permitting large arguments in the left
half-plane
* Implemented analytic continuation to |z| >= 1 for hypergeometric functions
pFq with p=q+1; added hyp3f2()
* Implemented Borel summation of divergent pFq functions with p > q+1
* Implemented automatic degree reduction of hypergeometric functions with
repeated parameters
* Added convenience functions expj(), expjpi()
* Use Mathematica's convention for the continuation of the Meijer G-function
* Added phase(), polar(), rect() functions for compatibility with the
Python 2.6 cmath module
* Implemented spherical harmonics (spherharm())
* Optimized ci(), si(), chi(), shi() for complex arguments by evaluating
them in terms of ei()
* Optimized hyp2f1 for z ~= -1
