//Declaration: float tanf(float arg);
double tan(double arg);
long double tanl(long double arg);
//Parameter: The value of arg must be in radians.
#include
#include
int main(void)
{
double val = -1.0;
do {
printf("Tangent of %f is %f.\n", val, tan(val));
val += 0.1;
} while(val<=1.0);
return 0;
}
/*
Tangent of -1.000000 is -1.557408.
Tangent of -0.900000 is -1.260158.
Tangent of -0.800000 is -1.029639.
Tangent of -0.700000 is -0.842288.
Tangent of -0.600000 is -0.684137.
Tangent of -0.500000 is -0.546302.
Tangent of -0.400000 is -0.422793.
Tangent of -0.300000 is -0.309336.
Tangent of -0.200000 is -0.202710.
Tangent of -0.100000 is -0.100335.
Tangent of 0.000000 is 0.000000.
Tangent of 0.100000 is 0.100335.
Tangent of 0.200000 is 0.202710.
Tangent of 0.300000 is 0.309336.
Tangent of 0.400000 is 0.422793.
Tangent of 0.500000 is 0.546302.
Tangent of 0.600000 is 0.684137.
Tangent of 0.700000 is 0.842288.
Tangent of 0.800000 is 1.029639.
Tangent of 0.900000 is 1.260158.
Tangent of 1.000000 is 1.557408.
*/