1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
/*
Copyright (C) 2014 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"
void
acb_get_mag_lower(mag_t z, const acb_t x)
{
if (arb_is_zero(acb_imagref(x)))
{
arb_get_mag_lower(z, acb_realref(x));
}
else if (arb_is_zero(acb_realref(x)))
{
arb_get_mag_lower(z, acb_imagref(x));
}
else
{
mag_t t;
mag_init(t);
arb_get_mag_lower(t, acb_realref(x));
arb_get_mag_lower(z, acb_imagref(x));
mag_mul_lower(t, t, t);
mag_mul_lower(z, z, z);
mag_add_lower(z, z, t);
mag_sqrt_lower(z, z);
mag_clear(t);
}
}