What does the source code for the sqrt function of the math (Python) library look like?

Question

Python

Specifically, I would like to see the algorithm, how the sqrt function does it all.

Answer 1

In the cpython sources, there is indeed a reference to the C-implementation of the standard mat. functions .
And in the x86/87 architecture, the sqrt function is implemented in hardware as a math coprocessor command .

Answer 2

Piston's math functions are a wrapper over Sishny, and how they are implemented there in a particular system - see the source code. Under Linux you will definitely find it, under Windows I don’t know.

Answer 3

https://tinyurl.com/y5dzwaah
If you are interested in the theoretical basis, buy a textbook on "numerical methods".