How to use setprecision in C

Question

I am new in C     i just want to output my point number up to 2 digits  just like if number is 3 444  then the output should be 3 44 or if number is 99999 4234 then output should be 99999 42  How can i do that  the value is dynamic  Here is my code    include  lt iomanip h gt   include  lt iomanip gt  int main         double num1   3 12345678      cout  lt  lt  fixed  lt  lt  showpoint      cout  lt  lt  setprecision 2       cout  lt  lt  num1  lt  lt  endl      but its giving me an error  undefined fixed symbol

User · Answer

include  lt iostream gt   include  lt iomanip gt    int main void         float value      cin  gt  gt  value      cout  lt  lt  setprecision 4   lt  lt  value      return 0

User · Answer

std  cout precision 2   std  cout lt  lt std  fixed   when you are using operator overloading try this

User · Answer

include  lt bits stdc   h gt                            to include all libraries  using namespace std   int main       double a b  cin gt  gt a gt  gt b  double x a b                                    say we want to divide a b                                  cout lt  lt fixed lt  lt setprecision 10  lt  lt x                for precision upto 10 digit  return 0       input  1987 31 output  662 3333333333                           10 digits after decimal point

User · Answer

Below code runs correctly    include  lt iostream gt   include  lt iomanip gt  using namespace std   int main         double num1   3 12345678      cout  lt  lt  fixed  lt  lt  showpoint      cout  lt  lt  setprecision 2       cout  lt  lt  num1  lt  lt  endl

User · Answer

The answer above is absolutely correct  Here is a Turbo C   version of it    include  lt iomanip h gt   include  lt iostream h gt   void main         double num1   3 12345678      cout  lt  lt  setiosflags fixed   lt  lt  setiosflags showpoint       cout  lt  lt  setprecision 2       cout  lt  lt  num1  lt  lt  endl      For fixed and showpoint  I think the setiosflags function should be used

User · Answer

include  lt iostream gt   include  lt iomanip gt  using namespace std    You can enter the line using namespace std  for your convenience  Otherwise  you ll have to explicitly add std   every time you wish to use cout  fixed   showpoint  setprecision 2  and endl  int main         double num1   3 12345678      cout  lt  lt  fixed  lt  lt  showpoint      cout  lt  lt  setprecision 2       cout  lt  lt  num1  lt  lt  endl  return 0

User · Answer

Replace These Headers    include  lt iomanip h gt   include  lt iomanip gt       With These     include  lt iostream gt   include  lt iomanip gt  using namespace std    Thats it

User · Answer

include  lt iomanip gt   include  lt iostream gt   int main         double num1   3 12345678      std  cout  lt  lt  std  fixed  lt  lt  std  showpoint      std  cout  lt  lt  std  setprecision 2       std  cout  lt  lt  num1  lt  lt  std  endl      return 0

[c++] How to use setprecision in C++

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