How do I print a folat or double with 2 decimals in c++??
in c is printf("%f.2",x) but in c++?
I know this:
#include <iomanip.h>
fout<<setprecision(2)<<x;
but this dosen't work under linux.

try printf("%.2f", x)
you could read BC's help on printf. There are useful things said there