mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*=============================================================================
|
|
|
|
This file is part of ARB.
|
|
|
|
ARB is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ARB 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with ARB; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
=============================================================================*/
|
|
/******************************************************************************
|
|
|
|
Copyright (C) 2013 Fredrik Johansson
|
|
|
|
******************************************************************************/
|
|
|
|
#include "gamma.h"
|
|
#include "zeta.h"
|
|
|
|
void
|
|
gamma_lgamma_series_at_one(fmprb_ptr u, long len, long prec)
|
|
{
|
|
long i;
|
|
|
|
if (len > 0) fmprb_zero(u);
|
|
if (len > 1) fmprb_const_euler(u + 1, prec);
|
|
if (len > 2) zeta_ui_vec(u + 2, 2, len - 2, prec);
|
|
|
|
for (i = 2; i < len; i++)
|
|
fmprb_div_ui(u + i, u + i, i, prec);
|
|
|
|
for (i = 1; i < len; i += 2)
|
|
fmprb_neg(u + i, u + i);
|
|
}
|
|
|