1 /* 2 * Single-precision polynomial coefficients for vector atan(x) and atan2(y,x). 3 * 4 * Copyright (c) 2019-2024, Arm Limited. 5 * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception 6 */ 7 8 #include "math_config.h" 9 10 /* Coefficients of polynomial P such that atan(x)~x+x*P(x^2) on [2**-128, 1.0]. 11 */ 12 const struct atanf_poly_data __atanf_poly_data 13 = { .poly 14 = { /* See atanf.sollya for details of how these were generated. */ 15 -0x1.55555p-2f, 0x1.99935ep-3f, -0x1.24051ep-3f, 0x1.bd7368p-4f, 16 -0x1.491f0ep-4f, 0x1.93a2c0p-5f, -0x1.4c3c60p-6f, 17 0x1.01fd88p-8f } }; 18