C # is now large, but what about supporting arbitrary precision floating-point numbers

Question

Now that the biginteger support (System.Numerics.BigInteger) has been added in C # 4.0, it would be nice if a fixed-point floating point were possible. Are there any good (preferably free) third-party libraries that offer effective arbitrary / floating-point precision?

Answer 1

Arbitrary precision floating point and fixed point numbers can be easily encoded as BigIntegers relationships. I do not know any ready-made libraries for them, but then I know little about C #.