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Re: arithmetic issues
This page is part of the web mail archives of SRFI 77 from before July 7th, 2015. The new archives for SRFI 77 contain all messages, not just those from before July 7th, 2015.
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.
Dr Alan Watson
Centro de Radioastronomía y Astrofísica
Universidad Astronómico Nacional de México