C++ Precision function Program with Output

C++ Precision Program

Sets the decimal precision to be used to format floating-point values on output operations. Behaves as if member precision were called with n as argument on the stream on which it is inserted/extracted as a manipulator (it can be inserted/extracted on input streams or output streams).

Example

#include<iostream>

#include<cmath>

using namespace std;

int main()

{

cout<<"pre set to 3 digit\n\n";

cout.precision(3);

cout.width(10);

cout<<"value";

cout.width(15);

cout<<"sqrt of value"<<"\n";

for(int n=1;n<=5;n++)

{

cout.width(8);

cout<<n;

cout.width(13);

cout<<sqrt(n)<<"\n";

}

cout<<"\n set precision set of 5 digit \n\n";

cout.precision(5);

cout<<"sqrt(10)="<<sqrt(10)<<"\n\n";

cout.precision(0);

cout<<"sqrt(10)="<<sqrt(10)<<"(default setting\n";

return 0;

}

--------------------------------------------------------------------------------------------------------------------------

Output With Example

C++ Precision Program