An R interface to 'FLINT' < https://flintlib.org/>, a C library for
number theory. 'FLINT' extends GNU 'MPFR' < https://www.mpfr.org/>
and GNU 'MP' < https://gmplib.org/> with support for operations on
standard rings (the integers, the integers modulo n, finite
fields, the rational, p-adic, real, and complex numbers) as well
as matrices and polynomials over rings. 'FLINT' implements
midpoint-radius interval arithmetic, also known as ball
arithmetic, in the real and complex numbers, enabling computation
in arbitrary precision with rigorous propagation of rounding and
other errors; see Johansson (2017)