View Compilation Error

0_0_20943975_11998.cpp: In function 'int main()':
0_0_20943975_11998.cpp:7:30: error: 'setflags' was not declared in this scope
   cout << setflags(ios::fixed) << setprecison(2) << fabs(x) << endl;
                              ^
0_0_20943975_11998.cpp:7:48: error: 'setprecison' was not declared in this scope
   cout << setflags(ios::fixed) << setprecison(2) << fabs(x) << endl;
                                                ^