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/*
Copyright (C) 2017 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 "arb_poly.h"
#include "gr_poly.h"
void
_arb_poly_log1p_series(arb_ptr res, arb_srcptr f, slong flen, slong n, slong prec)
{
gr_ctx_t ctx;
gr_ctx_init_real_arb(ctx, prec);
if (_gr_poly_log1p_series(res, f, flen, n, ctx) != GR_SUCCESS)
_arb_vec_indeterminate(res, n);
}
void
arb_poly_log1p_series(arb_poly_t res, const arb_poly_t f, slong n, slong prec)
{
slong flen = f->length;
if (flen == 0 || n == 0)
{
arb_poly_zero(res);
return;
}
if (flen == 1 /*&& !arb_contains_si(f->coeffs, -1)*/)
n = 1;
arb_poly_fit_length(res, n);
_arb_poly_log1p_series(res->coeffs, f->coeffs, flen, n, prec);
_arb_poly_set_length(res, n);
_arb_poly_normalise(res);
}