1 /* 2 * Coefficients for single-precision asin(x) function. 3 * 4 * Copyright (c) 2023, Arm Limited. 5 * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception 6 */ 7 8 #include "math_config.h" 9 10 /* Approximate asin(x) directly in [0x1p-106, 0.25]. See tools/asin.sollya 11 for these coeffcients were generated. */ 12 const double __asin_poly[] = { 13 /* Polynomial approximation of (asin(sqrt(x)) - sqrt(x)) / (x * sqrt(x)) 14 on [ 0x1p-106, 0x1p-2 ], relative error: 0x1.c3d8e169p-57. */ 15 0x1.555555555554ep-3, 0x1.3333333337233p-4, 0x1.6db6db67f6d9fp-5, 16 0x1.f1c71fbd29fbbp-6, 0x1.6e8b264d467d6p-6, 0x1.1c5997c357e9dp-6, 17 0x1.c86a22cd9389dp-7, 0x1.856073c22ebbep-7, 0x1.fd1151acb6bedp-8, 18 0x1.087182f799c1dp-6, -0x1.6602748120927p-7, 0x1.cfa0dd1f9478p-6, 19 }; 20