#include<stdio.h>
#include<math.h>

void call_all_functions(double (**lof)(double), int count, double param){
	for(int i = 0; i < 6; i++)
		printf("%lf\n", lof[i](1.0));
}

int main(){
	double (*lof[6])(double);
	lof[0] = sin;
	lof[1] = cos;
	lof[2] = tan;
	lof[3] = asin;
	lof[4] = acos;
	lof[5] = atan;

	call_all_functions(lof, 6, 1);

	return 0;
}