mirror of
https://github.com/vale981/arb
synced 2025-03-05 09:21:38 -05:00
30 lines
783 B
C
30 lines
783 B
C
/*
|
|
Copyright (C) 2012 Fredrik Johansson
|
|
|
|
This file is part of Arb.
|
|
|
|
Arb 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 2.1 of the License, or
|
|
(at your option) any later version. See <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "arb_mat.h"
|
|
|
|
int
|
|
arb_mat_approx_inv(arb_mat_t X, const arb_mat_t A, slong prec)
|
|
{
|
|
if (X == A)
|
|
{
|
|
int r;
|
|
arb_mat_t T;
|
|
arb_mat_init(T, arb_mat_nrows(A), arb_mat_ncols(A));
|
|
r = arb_mat_approx_inv(T, A, prec);
|
|
arb_mat_swap(T, X);
|
|
arb_mat_clear(T);
|
|
return r;
|
|
}
|
|
|
|
arb_mat_one(X);
|
|
return arb_mat_approx_solve(X, A, X, prec);
|
|
}
|