# include <stdio.h>
# include <math.h>

float fran ( float a, float b, int *seed );
float my_sqrt ( float x );

int main ( )
{
  float e;
  int i;
  int seed;
  float x, y, z;

  seed = 123;

  for ( i = 0; i < 10; i++ )
  {
    x = fran ( 0.0, 100.0, &seed );
    y = sqrt ( x );
    z = my_sqrt ( x );
    e = fabs ( y - z );

    printf ( "  %f  %f  %f  %g\n", x, y, z, e );
  }
  return 0;
}