1*f3087befSAndrew Turner /* 2*f3087befSAndrew Turner * Double-precision polynomial coefficients for vector atan(x) and atan2(y,x). 3*f3087befSAndrew Turner * 4*f3087befSAndrew Turner * Copyright (c) 2019-2024, Arm Limited. 5*f3087befSAndrew Turner * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception 6*f3087befSAndrew Turner */ 7*f3087befSAndrew Turner 8*f3087befSAndrew Turner #include "math_config.h" 9*f3087befSAndrew Turner 10*f3087befSAndrew Turner const struct atan_poly_data __atan_poly_data 11*f3087befSAndrew Turner = { .poly = { /* Coefficients of polynomial P such that atan(x)~x+x*P(x^2) 12*f3087befSAndrew Turner on [2**-1022, 1.0]. See atan.sollya for details of how 13*f3087befSAndrew Turner these were generated. */ 14*f3087befSAndrew Turner -0x1.5555555555555p-2, 0x1.99999999996c1p-3, 15*f3087befSAndrew Turner -0x1.2492492478f88p-3, 0x1.c71c71bc3951cp-4, 16*f3087befSAndrew Turner -0x1.745d160a7e368p-4, 0x1.3b139b6a88ba1p-4, 17*f3087befSAndrew Turner -0x1.11100ee084227p-4, 0x1.e1d0f9696f63bp-5, 18*f3087befSAndrew Turner -0x1.aebfe7b418581p-5, 0x1.842dbe9b0d916p-5, 19*f3087befSAndrew Turner -0x1.5d30140ae5e99p-5, 0x1.338e31eb2fbbcp-5, 20*f3087befSAndrew Turner -0x1.00e6eece7de8p-5, 0x1.860897b29e5efp-6, 21*f3087befSAndrew Turner -0x1.0051381722a59p-6, 0x1.14e9dc19a4a4ep-7, 22*f3087befSAndrew Turner -0x1.d0062b42fe3bfp-9, 0x1.17739e210171ap-10, 23*f3087befSAndrew Turner -0x1.ab24da7be7402p-13, 0x1.358851160a528p-16 } }; 24