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48 lines
1.0 KiB
C++
48 lines
1.0 KiB
C++
/**
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* @file cordic.hpp
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* @brief Provides mathematical functions for algorithms.
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*
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* Copyright (C) 2023 Clyne Sullivan
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*
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* Distributed under the GNU GPL v3 or later. You should have received a copy of
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* the GNU General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef CORDIC_HPP_
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#define CORDIC_HPP_
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/**
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* Named after the hardware CORDIC peripheral even though software
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* implementations may be used.
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*/
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namespace cordic {
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// Provides pi in case cordic functions require it.
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constexpr double PI = 3.1415926535L;
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/**
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* Prepares cordic functions for use.
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*/
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void init();
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// mod - Calculates remainder for given fraction.
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// cos, sin, tan - The trig functions.
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#if !defined(TARGET_PLATFORM_L4)
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double mod(double n, double d);
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double cos(double x);
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double sin(double x);
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double tan(double x);
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#else
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float mod(float n, float d);
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float cos(float x);
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float sin(float x);
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float tan(float x);
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#endif
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}
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#endif // CORDIC_HPP_
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