Copyright 2000, 2001, 2002, 2003 Free Software Foundation. Contributed by the Spaces project, INRIA Lorraine. This file is part of the MPFR Library. The MPFR Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The MPFR Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the MPFR Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ############################################################################## Changes from version 2001 to version 2.0.1: - new mathematical functions: acos, acosh, asin, asinh, atan, atanh, cosh, base-2 exponential and logarithm, base-10 logarithm, expm1, factorial, pow, pow_si, pow_ui, sinh, tan, tanh, ui_pow, ui_pow_ui - other new functions: mpfr_const_euler, mpfr_dim, mpfr_fma, mpfr_hypot, mpfr_min, mpfr_max, mpfr_rint, mpfr_set_inf, mpfr_set_nan - new operations with mpz or mpz: mpfr_{add,sub,mul,div}_[zq] - new predicates: mpfr_inf_p, mpfr_nan_p, mpfr_number_p, mpfr_isinteger, - add mechanism to set/check exponent range (overflow, underflow), partially implemented in the mpfr functions. - efficiency: mpfr_div is now faster when the divisor has a few limbs - rounding: now mpfr_pow implements exact rouding, and most functions return a ternary value indicating the position of the returned value wrt the exact one (thus the return value is now 'int' instead of 'void') - complete rewrite of the configuration files - mpfr_get_d, mpfr_{add,sub}_one_ulp now get a rounding mode as 2nd argument - some function names did change: mpz_set_fr is now mpfr_get_z_exp, mpfr_print_raw is now mpfr_print_binary. Changes from version 1.0 to version 2001: - the default installation does not provide any more access to machine rounding mode, and as a consequence does not compare MPFR results with precision=53 to machine results. Add option -DTEST if you want to have access to machine rounding mode, and to check MPFR results against. - the MPFR files do not need any more - the header file was split into for exported functions and for internal functions. The user should not use functions or macros from , since those may change in further releases. - was modified in order to make easy a C++ interface - MPFR now deals with infinities (+infinity and -infinity) and NaN - the missing function mpfr_swap is now available - mpfr_zeta was removed (was incomplete) - mpfr_init and mpfr_init2 now initialize the corresponding variable to 0 (like in other initialization functions from GNU MP) - in case memory allocation fails, an error message is output - several bugs of version 1.0 were fixed Changes from version 0.4 to version 1.0: - Version 1.0 now uses a standard configure/make installation. - Version 1.0 implements all functions that are available in the MPF class from GMP 3.1 (except mpf_swap) and a header file mpf2mpfr.h is included in the distribution for easy change from MPF to MPFR. - Version 1.0 implements new elementary functions: mpfr_sincos - Some functions and macros have been renamed: mpfr_log2 is now mpfr_const_log2, mpfr_pi is now mpfr_const_pi, SIGN is now MPFR_SIGN. - Version 1.0 uses faster algorithms for mpfr_exp, mpfr_const_pi, mpfr_const_log2. Compare the timings from version 1.0 and version 0.4. - Version 1.0 corrects some bugs of version 0.4. - The precision of MPFR variables is now named mpfr_prec, which makes it easier to change it, to say unsigned long long. Same for the rounding mode which is called mp_rnd_t. You'll find other news concerning the MPFR library on the web page .