: : : : : : : : : : : : : : :
#include<iostream>
#include<cmath>
using namespace std;
int main(){
cout<<"round(1.3) = "<<round(1.3)<<endl
<<"round(1.5) = "<<round(1.5)<<endl
<<"round(-1.3) = "<<round(-1.3)<<endl
<<"round(-1.5) = "<<round(-1.5)<<endl;
return 0;
}
this function takes the form of
double round(double d);
> > > > > > > > > > cmath>