24.04
Math.h
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/*
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* Copyright (c) 2023 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ACL_SRC_CORE_UTILS_MATH_H
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#define ACL_SRC_CORE_UTILS_MATH_H
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#include <array>
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namespace
arm_compute
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{
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/** Lookup table for erf(x) calculation. */
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template
<
typename
T>
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struct
ErfLutEntry
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{
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/** erf(x) */
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T
value
;
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/** 2 / sqrt(pi) * e^(-x^2) */
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T
scale
;
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};
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/** The lookup table for FP32 erf(x) calculation. */
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extern
const
std::array<ErfLutEntry<float>, 513>
erf_f32_lut
;
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}
// namespace arm_compute
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#endif // ACL_SRC_CORE_UTILS_MATH_H
arm_compute::ErfLutEntry
Lookup table for erf(x) calculation.
Definition:
Math.h:35
arm_compute::erf_f32_lut
const std::array< ErfLutEntry< float >, 513 > erf_f32_lut
The lookup table for FP32 erf(x) calculation.
Definition:
Math.cpp:30
arm_compute::ErfLutEntry::scale
T scale
2 / sqrt(pi) * e^(-x^2)
Definition:
Math.h:41
arm_compute::ErfLutEntry::value
T value
erf(x)
Definition:
Math.h:38
arm_compute
Copyright (c) 2017-2024 Arm Limited.
Definition:
introduction.dox:24
src
core
utils
Math.h
Generated on Mon Apr 29 2024 10:53:52 for Compute Library by
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