radix-point

Who does non-decimal bignums with floating radix point?

Nice as the Tcl libraries math::bignum and math::bigfloat are, the middle ground between the two needs to be addressed. Namely, bignums which are in different radices and have a radix point. At present math::bignum only handles integers (afaict) and math::bigfloat won't let you specify different radices to math::bigfloat::fromstr (ditt...

How do you calculate floating point in a radix other than 10?

Given Wikipedia's article on Radix Point, how would one calculate the binary equivalent of 10.1 or the hex equivalent of 17.17? For the former, what is the binary equivalent of a tenth? For the latter, the hex representation of 17/100? I'm looking more for an algorithm than for solutions to just those two examples. ...