Free C++ library for arbitrary precision arithmetic (permissive software license).

Features:

• Arbitrary precision integers, floats and rationals.
• Numbers can be any fixed precision (specifiable as a template parameter) or can dynamically grow in precision based on the precision of operands.
• Header only with no dependencies on external libraries.

NOTE: This new project is, as of March 2021, still a work-in-progress so DO NOT USE until v1.0 has been released with a full suite of unit tests.