An example how to line up your decimal points in a column like output of floating point numbers. Both C and C++ versions are shown. Thanks are given to Bud Tugly, my 77 year old senior student.
Right Justified Numeric Output
// right justified numeric output (Dev-C++)
#include <cstdlib>
#include <iostream>
#include <cstdio> // for printf()
#include <iomanip> // setXXX() functions
using namespace std;
int main()
{
double d1 = 30.768;
double d2 = 1.345;
double d3 = .430;
// this works well, the decimal points line up
printf("%8.3f\n",d1);
printf("%8.3f\n",d2);
printf("%8.3f\n\n",d3);
// dito, but keep the order of setXXX() functions!!
cout << setiosflags(ios::fixed);
cout << setw(8) << setprecision(3) << d1 << endl;
cout << setw(8) << setprecision(3) << d2 << endl;
cout << setw(8) << setprecision(3) << d3 << endl << endl;
system("PAUSE");
return EXIT_SUCCESS;
}
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