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Re: arithmetic issues
Per Bothner <per@xxxxxxxxxxx> writes:
> Thomas Bushnell BSG wrote:
>> Alan Watson <a.watson@xxxxxxxxxxxxxxxx> writes:
>>> NaNs are atoms -- they have no context or stucture, just a single
>>> value. With the understandable exception of the eof object (and as
>>> has been noted, this is exception is not universal), Lisps and
>>> Schemes tranditionally provide read syntax for atoms. So, tradition
>>> suggests that we should have a read syntax for NaNs.
>> Hogwash. Procedures are atoms.
> Wrong. Closures can be modified.
Where is the Scheme function which modifies closures?
I was always taught that an atom is anything which is not a cons. :)
At least, the Little Lisper says so.
But that aside, NaNs could also have structure, as has been pointed
out; it could be useful for them to come with a tag identifying their