How to write a program to find sqaure root of a number without using math library?

Answer 1

There are many methods of computing square roots.
https://en.m.wikipedia.org/wiki/Methods_of_computing_square_roots

Answer 2

Oh shit. I forgot were in java. i styled this code in c++ syntax by mistake. just make the necessary adjustments to main ()

Answer 3

import java.util.Scanner;

class Sqrt
{
public static double sqrt(float num);
{
double guess = 0;
do
{
guess += .000001;
}while(guess*guess < num );
return guess;
}
}
class SqrtTest
{
public static void main(String[] args)
{
System.out.println("Please enter a number >> ");
Scanner cin = new Scanner(System.in);

float num = cin.nextFloat();
double result = sqrt(num);

System.out.println("The square " +
" of " + num + " is " + result);
}
}

Answer 4

It works for me and very accurate result ->

result=1;
for(int i=1; i<=10; i++)
{
result=0.5*(result+n/result);
}

Answer 5

i guess math.sqrt() is the only way to find it

Answer 6

make your own library

Answer 7

class math
{ int a,b;
void sqr(int x)
{a=x;
b=a*a;
System.out.println(b);
}
}
class sqrt
{ public static void main( String raha[])
{math ob=new math();
ob.sqr(9);
}}

Answer 8

double sqrt(float num)
{
double guess = 0;

do
{
guess += .000001;

}while(guess*guess<num);

return guess;
}
int main() {

float num;

cout << "welcome.\n";

cout <<"Please enter a number >> \n";
cin >> num;

double result = sqrt(num);

cout << "The square root of " << num <<
" is "<< result;
return 0;
}