View Compilation Error

0_0_39814845_14139.cpp: In function 'int main()':
0_0_39814845_14139.cpp:25:57: error: 'setpresicion' was not declared in this scope
   25 |                 if (ans != 10000000000.0) cout <<fixed<<setpresicion(3)<< ans/2.0 << endl;
      |                                                         ^~~~~~~~~~~~