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28 lines
375 B
C
28 lines
375 B
C
#ifndef __AUTH__
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#define __AUTH__
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#ifndef _MATH_H_
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#include <math.h>
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#endif
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#ifndef _STDBOOL_H
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#include <stdbool.h>
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#endif
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#define ld long double
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#define pwr2(x) (x * x)
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ld
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sq_root(ld x);
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ld
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toRadians( ld degree );
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ld
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orthodromic_distance(ld stu_lat, ld stu_long, ld teach_lat, ld teach_long);
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bool
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check_range(ld dist);
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#endif // __AUTH__
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