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33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/*
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* This file is part of the cordic project.
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* Copyright 2026 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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void set_sincos(int iscordic);
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int get_sincos();
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float MJD_from_unix(uint32_t t);
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//float LST_from_mjd(float mjd);
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float LST_from_unix(uint32_t t);
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float ha_to_ra(float ha, float lst);
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float ra_to_ha(float ra, float lst);
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void altaz_to_hadec(float alt_deg, float az_deg, float *ha_deg, float *dec_deg);
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void hadec_to_altaz(float ha_deg, float dec_deg, float *alt_deg, float *az_deg);
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float refraction(float phpa, float tc, float rh, float Z_rad);
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