Python error when calling NumPy from class method with map

Question

The following code throws me the error:

Traceback (most recent call last):
  File \"\", line 25, in 
    sol = anna.main()
  File \"\", line 17, in         


        

Answer 1

It may not be your exact case, but if you want to take the square root of a large number AND you want to have control of the precision of the result, going either to math.sqrt() or x ** 0.5 would not be much useful because your result will end up being a float number, and for large enough inputs, this will hit the limitations of float numbers.

One possibility for the specific case of sqrt is to look into an integer-only implementation of the square root algorithm, e.g. flyingcircus.util.isqrt() (Disclaimer: I am the main author of flyingcircus).

Alternatively, for a more general solution, one may look into gmpy (or any other arbitrary precision library with Python bindings).