#include <math.h>
double tan(double x);
#include <math.h>
main(){
double answer = tan(0.5);
printf("tan(0.5) = %f\n", answer);
}
tan(0.5) = 0.546302
#include <math.h>
double tanh(double x);
#include <math.h>
main(){
double answer = tanh(0.5);
printf("tanh(0.5) = %f\n", answer);
}
tanh(0.5) = 0.462117
#include <math.h>
double atan(double x);
#include <math.h>
main(){
double angle;
angle = atan(1);
printf("angle = %f\n", angle);
}
angle = 1.570796
#include <math.h>
double atan2(double y, double x);
#include <math.h>
main(){
double angle;
angle = atan2(1, 2);
printf("angle = %f\n", angle);
}
angle = 0.463648
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