Hoit Studio

c언어 루트값 구하기

#include <stdio.h>

#include <math.h>

int main()

{

double a=0; 

double root=0;

printf("Enter a number: ");

scanf("%lf", &a);   

//printf("%d root =%f\n",a, sqrt(a));

root = sqrt( a );

if( a < 0 )

      printf( "Error: sqrt returns %.2f\n, root" );

   else

      printf( "The square root of %.2f is %.2f\n", a, root );

return 0;

}