hello Johannes
thanks for the BigInt module, sure it takes a big effort to do such a huge project.
i suggest to add 4 or more examples , so Eros may include those to the thinbasic math folder examples , the examples can be with the same spirit like "examples for beginners".
it is an extra ordinary that a programming language have its own big integers math library,
i hope with time the library will be used by mathematicians and others once they know about it especialy in universities, since it is more straightforward than using gmp library.