#include
int main()
{
    int number;
    float temp_var, square_root;
    printf("Enter the number, whose square root is required : \n");
    scanf("%d", &number); // say number = 16
    // divide the number by half and store it into the square_root 
    square_root = number / 2;     // our given number = 16 , then half of 16 is 8,  and stored into square_root 
    temp_root = 0;                // initiallized by zero
    // Repeat the steps until square_root and temp_var are not equal 
    while(square_root != temp_var){     
        // initially square_root = 8 ; temp_var =0 
        // (on second iteration = 5)
        // and so on
        temp_var = square_root;
        // Then, replace values (16 / 8 + 8 ) / 2 = 5
        // (on second iteration 5)
        // and so on
        square_root = ( number/temp_var + temp_var) / 2;
    }
    printf("The square root of '%d' is '%f'", number, square_root);
    return 0;
    }