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/*
Copyright (C) 2019 Fredrik Johansson
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "acb.h"
#include "arb_hypgeom.h"
#include "acb_hypgeom.h"
void
arb_hypgeom_coulomb(arb_t F, arb_t G, const arb_t l, const arb_t eta, const arb_t z, slong prec)
{
acb_ptr tmp;
tmp = _acb_vec_init(5);
acb_set_arb(tmp + 2, l);
acb_set_arb(tmp + 3, eta);
acb_set_arb(tmp + 4, z);
acb_hypgeom_coulomb(F ? tmp : NULL, G ? tmp + 1 : NULL,
NULL, NULL, tmp + 2, tmp + 3, tmp + 4, prec);
if (F != NULL)
{
if (acb_is_real(tmp))
arb_set(F, acb_realref(tmp));
else
arb_indeterminate(F);
}
if (G != NULL)
{
if (acb_is_real(tmp + 1))
arb_set(G, acb_realref(tmp + 1));
else
arb_indeterminate(G);
}
_acb_vec_clear(tmp, 5);
}