Task

Write two equal-sized numerical arrays 'x' and 'y' to
a two-column text file named 'filename'.

The first column of the file contains values from an 'x'-array with a
given 'xprecision', the second -- values from 'y'-array with 'yprecision'.

For example, considering:

   x = {1, 2, 3, 1e11};
   y = {1, 1.4142135623730951, 1.7320508075688772, 316227.76601683791}; 
                                                          /* sqrt(x) */
   xprecision = 3;
   yprecision = 5;

The file should look like:

   1    1
   2    1.4142
   3    1.7321
   1e+011   3.1623e+005

This task is intended as a subtask for Measure relative performance of sorting algorithms implementations.




Program WriteNumbers;
 
const
  x: array [1..4] of double = (1, 2, 3, 1e11);
  xprecision = 3;
  yprecision = 5;
  baseDigits = 7;
 
var
  i: integer;
  filename: text;
 
begin
  assign (filename, 'filename');
  rewrite (filename);
  for i := 1 to 4 do
    writeln (filename, x[i]:baseDigits+xprecision, sqrt(x[i]):baseDigits+yprecision);
  close (filename);
end.