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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
double
libtellurian_normal_gravity(double latitude)
{
latitude = radians(latitude);
return libtellurian_normal_gravity_radians(latitude);
}
#else
static int
approx(double a, double b)
{
return fabs(a - b) <= 1e-8 * (0.5 * (a + b));
}
int
main(void)
{
ASSERT(libtellurian_normal_gravity(0) == libtellurian_normal_gravity_radians(0));
ASSERT(libtellurian_normal_gravity(180) == libtellurian_normal_gravity_radians(0));
ASSERT(libtellurian_normal_gravity(360) == libtellurian_normal_gravity_radians(0));
ASSERT(approx(libtellurian_normal_gravity(90), libtellurian_normal_gravity(-90)));
ASSERT(approx(libtellurian_normal_gravity(90), libtellurian_normal_gravity(270)));
ASSERT(approx(libtellurian_normal_gravity(45), libtellurian_normal_gravity(-45)));
ASSERT(approx(libtellurian_normal_gravity(135), libtellurian_normal_gravity(45)));
ASSERT(approx(libtellurian_normal_gravity(-135), libtellurian_normal_gravity(135)));
ASSERT(libtellurian_normal_gravity(90) == libtellurian_normal_gravity_radians(D90));
ASSERT(libtellurian_normal_gravity(45) == libtellurian_normal_gravity_radians(D45));
ASSERT(libtellurian_normal_gravity(30) == libtellurian_normal_gravity_radians(D30));
return 0;
}
#endif
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