Upper limit of precision in mpmath-python

Question

When in python and mpmath one's code starts with

from mpmath import mp 

mp.dps =200

My question is whether -depending on one's hardware- does there exist an upper limit to mp.dps and how can one find this uper limit.

Answer 1

Please note that the actual precision is stored in binary bits and not decimal digits. mp.dps() automatically does the conversion to binary bits.

By default, mpmath uses the Python arbitrary-precision integers as the basis for its arithmetic. There are no limitations other than the memory in your system or your patience.

If you have gmpy2 installed, mpmath will automatically use the faster integer type based on the GMP library. The GMP library has a maximum precision of 2^32 - 1 bits (roughly 1.29E9 decimal digits) on 32-bit systems and 2^37 - 1 bits (roughly 4.14E10 decimal digits) on 64-bit systems.

I'm not aware of any other limits.