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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dean Rasheed <dean.a.rasheed@gmail.com>
cc: Michael Paquier <michael@paquier.xyz>,
        PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
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Subject: Re: pgsql: Add support for hyperbolic functions, as well as log10().
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Comments: In-reply-to Dean Rasheed <dean.a.rasheed@gmail.com>
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Dean Rasheed <dean.a.rasheed@gmail.com> writes:
> I'm amazed that jacana's asinh() returned -0 for an input of +0.

Even more amusingly, it returns NaN for acosh('infinity'), cf
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=3Djacana&dt=3D2019=
-03-14%2003%3A00%3A34

Presumably that means they calculated "infinity - infinity" at some
point, but why?

So far, no other failures ...

			regards, tom lane