Some weird explanations about squrt() function, based on what my high school teacher told me.
This is a part of the plan "coding without ai", which is a very hard part nowadays.
Update 12 April:
I found there exists an earlier explanation for this project, someone have done it here.
Enjoy, if you find this useful, that will make me happy.
Version 1.0: Did the basic sqrt calculation for a 4-digit integer, and the output is also a 2-digit integer.
Version 1.1: Expand the calculation to all integers, the output is still integer.
Version 1.2: Expand the output to self-define-digit float number.
Version 1.3: Expand the parameter to fraction number, partly fixed the 9 vulnerable error, removed the self-define digit function.
Version 1.4: Expand the parameter to all real numbers, wholy fixed the 9 vulnerable error.