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From mattf-horton <...@git.apache.org>
Subject [GitHub] metron issue #681: METRON-1079 Add NaN as a keyword in STELLAR language
Date Tue, 15 Aug 2017 17:27:52 GMT
Github user mattf-horton commented on the issue:

    https://github.com/apache/metron/pull/681
  
    BTW, +/- Infinity **are** considered "real" values (essentially as tho via rounding) and
can be compared with equality and inequality.  NaN is considered a nonsensical or impossible-to-calculate
value, not a number at all.  The fact that 1.0/0.0 returns positive Infinity rather than NaN
is a mathematical choice, presumably based on limit logic and a preference for continuity.
(I didn't write the standard! :-)


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