Can someone tell me how to square root numbers without any other header file ?

Question

Can you tell me ? I have a answer I will post it in the answer section . Upvote if liked .

Answer 1

You answering from yourself If u know already then no need to post here

Answer 2

u can do it by long division method

Answer 3

My answer is by using the sqrt function .
int num1 = sqrt (num2) ;
Note - num1 and num2 are variables .