View Compilation Error

0_0_39009218_32321.cpp: In function 'int main()':
0_0_39009218_32321.cpp:51:26: error: 'setprecision' was not declared in this scope
   51 |         cout << fixed << setprecision(4) << findMinimumError(coefficients) << endl;
      |                          ^~~~~~~~~~~~
0_0_39009218_32321.cpp:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; did you forget to '#include <iomanip>'?
    3 | #include <vector>
  +++ |+#include <iomanip>
    4 |