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update docs; call this 2.8.0

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Fredrik Johansson 2015-12-29 17:47:22 +01:00
parent 72075160cf
commit 8bcaced225
3 changed files with 75 additions and 3 deletions
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2
arb/version.c
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@ -25,5 +25,5 @@
#include "arb.h"
const char * arb_version = "2.7.0";
const char * arb_version = "2.8.0";

4
configure vendored
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@ -9,8 +9,8 @@
#
# arb => soname
# 2.7.0 => 0.0.0
ARB_MAJOR=0
ARB_MINOR=0
ARB_MAJOR=1
ARB_MINOR=1
ARB_PATCH=0
PREFIX="/usr/local"

72
doc/source/history.rst
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@ -6,6 +6,78 @@ History and changes
For more details, view the commit log
in the git repository https://github.com/fredrik-johansson/arb
* 2015-12-29 - version 2.8.0
* Compatibility and build system
* Windows64 support (contributed by Bill Hart).
* Fixed a bug that broke basic arithmetic on targets where FLINT uses fallback code instead of assembly code, such as PPC64 (contributed by Jeroen Demeyer).
* Fixed configure to use EXTRA_SHARED_FLAGS/LDFLAGS, and other build system fixes (contributed by Tommy Hofmann, Bill Hart).
* Added soname versioning (contributed by Julien Puydt).
* Fixed test code on MinGW (contributed by Hrvoje Abraham).
* Miscellaneous fixes to simplify interfacing Arb from Julia.
* Arithmetic and elementary functions
* Fixed arf_get_d to handle underflow/overflow correctly and to support round-to-nearest.
* Added more complex inverse hyperbolic functions (acb_asin, acb_acos, acb_asinh, acb_acosh, acb_atanh).
* Added arb_contains_int and acb_contains_int for testing whether an interval contains any integer.
* Added acb_quadratic_roots_fmpz.
* Improved arb_sinh to use a more accurate formula for x < 0.
* Added sinc function (arb_sinc) (contributed by Alex Griffing).
* Fixed bug in arb_exp affecting convergence for huge input.
* Faster implementation of arb_div_2expm1_ui.
* Added mag_root, mag_geom_series.
* Improved and added test code for arb_add_error functions.
* Changed arb_pow and acb_pow to make pow(0,positive) = 0 instead of nan.
* Improved acb_sqrt to return finite output for finite input straddling the branch cut.
* Improved arb_set_interval_arf so that [inf,inf] = inf instead of an infinite interval.
* Added computation of Bell numbers (arb_bell_fmpz).
* Added arb_power_sum_vec for computing power sums using Bernoulli numbers.
* Added computation of the Fujiwara root bound for acb_poly.
* Added code to identify all the real roots of a real polynomial (acb_poly_validate_real_roots).
* Added several convenient assignment functions, including arb_set_d, acb_set_d, acb_set_d_d, acb_set_fmpz_fmpz (contributed by Ricky Farr).
* Added many accessor functions (_arb/acb_vec_entry_ptr, arb_get_mid/rad_arb, acb_real/imag_ptr, arb_mid/rad_ptr, acb_get_real/imag).
* Added missing functions acb_add_si, acb_sub_si.
* Renamed arb_root to arb_root_ui (keeping alias) and added acb_root_ui.
* Special functions
* Implemented the Gauss hypergeometric function 2F1 and its regularized version.
* Fixed two bugs in acb_hypgeom_pfq_series_direct discovered while implementing 2F1. In rare cases, these could lead to incorrect values for functions depending on parameter derivatives of hypergeometric series.
* The first bug involved incorrect handling of negative integer parameters. The bug only affected 2F1 and higher functions; it did not affect correctness of any previously implemented functions that relied on acb_hypgeom_pfq_series_direct (such as Bessel Y and K functions of integer order).
* The second bug involved a too small bound being computed for the sum of a geometric series. The geometric series bound is nearly tight for 2F1, and the incorrect version caused immediate test failures for that function. Theoretically, this bug affected correctness of some previously-implemented functions that relied on acb_hypgeom_pfq_series_direct (such as Bessel Y and K functions of integer order), but since the geometric bound is not as tight in those cases, those functions were still reliable in practice (no failing test case has been found).
* Implemented Airy functions and their derivatives (acb_hypgeom_airy).
* Implemented the confluent hypergeometric function 0F1 (acb_hypgeom_0f1).
* Implemented associated Legendre functions P and Q.
* Implemented Chebyshev, Jacobi, Gegenbauer, Laguerre, Hermite functions.
* Implemented spherical harmonics.
* Added function for computing Bessel J and Y functions simultaneously.
* Added rising factorials for non-integer n (arb_rising, acb_rising).
* Made rising factorials use gamma function for large integer n.
* Faster algorithm for theta constants and Dedekind eta function at very high precision.
* Fixed erf to give finite values instead of +/-inf for big imaginary input.
* Improved acb_zeta (and arb_zeta) to automatically use fast code for integer zeta values.
* Added double factorial (arb_doublefac_ui).
* Added code for generating Hilbert class polynomials (acb_modular_hilbert_class_poly).
* Matrices
* Added faster matrix squaring (arb/acb_mat_sqr) (contributed by Alex Griffing).
* Added matrix trace (arb/acb_mat_trace) (contributed by Alex Griffing).
* Added arb/acb_mat_set_round_fmpz_mat, acb_mat_set(_round)_arb_mat (contributed by Tommy Hofmann).
* Added arb/acb_mat_transpose (contributed by Tommy Hofmann).
* Added comparison methods arb/acb_mat_eq/ne (contributed by Tommy Hofmann).
* Other
* Added complex_plot example program.
* Added Airy functions to real_roots example program.
* Other minor patches were contributed by Alexander Kobel, Marc Mezzarobba, Julien Puydt.
* Removed obsolete file config.h.
* 2015-07-14 - version 2.7.0
* hypergeometric functions