#include <stdlib.h>
#include <stdio.h>

int main ( void )

/*
  This program estimates the square root of a number.
*/

{
  int i;
  float w;
  float x;

  w = 10.0;

  x = 1.0;

  for ( i = 0; i < 6; i++ ) {

    printf ( "x = %f  X^2 = %f\n", x, x*x );
    x = ( x + ( w / x ) ) / 2.0;
  }

  return 0;
}