www.pudn.com > xianjie.zip > xianjie.cpp

#include 
#include 
#include 
 
long double ab(long double s) 
{ 
	if(s<0) 
		s=-s; 
	return s; 
} 
 
long double f(long double s) 
{ 
	long double m; 
	m=cos(2*s)-9.0/4*s; 
	return m; 
} 
 
void main() 
{ 
	long double x=0.0,y=1.0,c=0.0000000000001,u,v,z,w; 
	u=f(x); 
	int k=0; 
	cout<=c); 
}