// test rand_float()
//
#include <stdio.h>
#include <math.h>
#include <stdlib.h> 
#include <time.h>

double rand_float(double a,double b) // from end of chapter4_7.c
{
   return ((double)rand()/RAND_MAX)*(b-a) + a;
}

int main( void)
{
  srand(time(0));

  for( int i = 0; i < 10; ++i)
  {
    double d = rand_float( -5.5, 4.7); printf(" %g", d); 
  }

  printf("\n");

  return 0;
}

/* sample output:

 -2.94558 0.0458558 -4.05454 -1.39061 -4.07325 -4.00564 1.95799 -4.53035 3.77801 3.22975

*/