[R6RS] Predicate for "neither infinite nor NaN"
sperber at informatik.uni-tuebingen.de
Wed May 10 10:59:10 EDT 2006
dyb at cs.indiana.edu writes:
>> The specification of arithmetic in a number of places refers to
>> numbers that can be anything except infinite or NaN. Should we have a
>> predicate for this? (Jaffer's SRFI has `finite?' for this purpose, I
> Such a predicate might be nice. The name finite? is okay with me. We
> already have a nan? predicate, right? Will we also have an infinite?
> predicate, so that the predicates finite?, infinite?, and nan? are
> orthogonal and cover the space of all real numbers?
I've added those to the SRFI and the reference implementation.
Cheers =8-} Mike
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