Thread: formatted I/O

hello,
need help with adding a formatted I/O to my program, here's the code:
#include <stdio.h>
#include <math.h>

int main(void) {

/* Variable declarations: */
double SR, CR, L, X, H;

/*Function body: */
SR=0.0;
CR=0.0;
L= 0.0;
X= 0.0;
H= 0.0;

printf("Enter low value: ");
scanf("%lf", &L);
printf("Enter high value:");
scanf("%lf", &H);

printf("Value Square Root Cubic Root \n");

while (L >= H) {
printf("Low is greater than High, please re-enter:");
scanf("%lf", &L);
scanf("%lf", &H);
} /* end while */ while (L <= H) {
X=1.0/3.0;
SR = sqrt(L);
CR = pow(L,X);
printf("%3.1f %7.5f %7.5f \n",L, SR, CR);
L = L + 0.1;
}/* end while */
return 0;
} /* end function main */

thanks for the help!