57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* This is the example given and commented on the MPFR web site:
|
|
* http://www.mpfr.org/sample.html
|
|
*/
|
|
|
|
/*
|
|
Copyright 1999-2004, 2006-2016 Free Software Foundation, Inc.
|
|
Contributed by the AriC and Caramba projects, INRIA.
|
|
|
|
This file is part of the GNU MPFR Library.
|
|
|
|
The GNU 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 3 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The GNU 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 GNU MPFR Library; see the file COPYING.LESSER. If not, see
|
|
http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
|
|
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <gmp.h>
|
|
#include <mpfr.h>
|
|
|
|
int main (void)
|
|
{
|
|
unsigned int i;
|
|
mpfr_t s, t, u;
|
|
|
|
mpfr_init2 (t, 200);
|
|
mpfr_set_d (t, 1.0, MPFR_RNDD);
|
|
mpfr_init2 (s, 200);
|
|
mpfr_set_d (s, 1.0, MPFR_RNDD);
|
|
mpfr_init2 (u, 200);
|
|
for (i = 1; i <= 100; i++)
|
|
{
|
|
mpfr_mul_ui (t, t, i, MPFR_RNDU);
|
|
mpfr_set_d (u, 1.0, MPFR_RNDD);
|
|
mpfr_div (u, u, t, MPFR_RNDD);
|
|
mpfr_add (s, s, u, MPFR_RNDD);
|
|
}
|
|
printf ("Sum is ");
|
|
mpfr_out_str (stdout, 10, 0, s, MPFR_RNDD);
|
|
putchar ('\n');
|
|
mpfr_clear (s);
|
|
mpfr_clear (t);
|
|
mpfr_clear (u);
|
|
return 0;
|
|
}
|