diff options
Diffstat (limited to 'pl/math/atan_data.c')
| -rw-r--r-- | pl/math/atan_data.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pl/math/atan_data.c b/pl/math/atan_data.c new file mode 100644 index 0000000..91d0f61 --- /dev/null +++ b/pl/math/atan_data.c @@ -0,0 +1,20 @@ +/* + * Double-precision polynomial coefficients for vector atan(x) and atan2(y,x). + * + * Copyright (c) 2019-2023, Arm Limited. + * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception + */ + +#include "math_config.h" + +const struct atan_poly_data __atan_poly_data = { + .poly = {/* Coefficients of polynomial P such that atan(x)~x+x*P(x^2) on + [2**-1022, 1.0]. See atan.sollya for details of how these were + generated. */ + -0x1.5555555555555p-2, 0x1.99999999996c1p-3, -0x1.2492492478f88p-3, + 0x1.c71c71bc3951cp-4, -0x1.745d160a7e368p-4, 0x1.3b139b6a88ba1p-4, + -0x1.11100ee084227p-4, 0x1.e1d0f9696f63bp-5, -0x1.aebfe7b418581p-5, + 0x1.842dbe9b0d916p-5, -0x1.5d30140ae5e99p-5, 0x1.338e31eb2fbbcp-5, + -0x1.00e6eece7de8p-5, 0x1.860897b29e5efp-6, -0x1.0051381722a59p-6, + 0x1.14e9dc19a4a4ep-7, -0x1.d0062b42fe3bfp-9, 0x1.17739e210171ap-10, + -0x1.ab24da7be7402p-13, 0x1.358851160a528p-16}}; |