Check the possibility of getting rid of the extra exponentiation at Newton's method end.

[TheSquidCombatant]

Check whether it is possible to modify the implementation for calculating the root using Newton's method so, as to get rid of exponentiation to verify that an accurate result is obtained.

I mean this place: GetRootByNewton. It seems that I came across on the Internet an implementation of calculating the square root using the Newton method with checking for the exact value without raising to a power, but by preliminary adding one to a source value.