C示例平方根程序

#include <stdio.h>



double squareRoot(double n) {

   double i, precision = 0.00001;



   for(i = 1; i*i <=n; ++i);           //Integer part



   for(--i; i*i < n; i += precision);  //Fractional part



   return i;

}



int main() {

   int n = 24;



   printf("Square root of %d = %lf", n, squareRoot(n));



   return 0;

}