From: "Ellis D. Cooper" <xtalv1@netropolis.net>
To: categories@mta.ca
Subject: Re: Functions in programming
Date: Sat, 14 Mar 2009 15:52:31 -0400 [thread overview]
Message-ID: <E1LiqSB-0006jt-Sk@mailserv.mta.ca> (raw)
To Andrew Stacey -
My take on your question is that in programming, functions correspond
in mathematics to partially defined functions. A properly coded
programming function must either return the result of a computation
for given inputs, or return a signal that the programming function is
not defined on the inputs provided. The empty mathematical function
would correspond to the programming function that returns that
"undefined" signal for all inputs whatsoever.
Ellis D. Cooper
next reply other threads:[~2009-03-14 19:52 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-14 19:52 Ellis D. Cooper [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-03-21 16:06 Bill Lawvere
2009-03-20 21:18 Robin Cockett
2009-03-19 15:37 Peter Selinger
2009-03-19 15:37 Peter Selinger
2009-03-19 14:18 Peter Selinger
2009-03-19 14:11 MigMit
2009-03-19 2:32 Robin Cockett
2009-03-18 15:34 Bill Lawvere
2009-03-17 23:06 Robin Cockett
2009-03-17 5:17 Nathan Bloomfield
2009-03-16 15:12 Andrew Stacey
2009-03-16 11:37 Miles Gould
2009-03-16 9:27 Tom Hirschowitz
2009-03-16 5:52 Vaughan Pratt
2009-03-16 4:25 Daniel Schüssler
2009-03-15 23:55 Thorsten Altenkirch
2009-03-15 22:18 Robin Cockett
2009-03-14 17:39 Thorsten Altenkirch
2009-03-14 14:58 Steve Stevenson
2009-03-14 14:51 Miguel Mitrofanov
2009-03-14 9:51 Luis Barbosa
2009-03-14 6:02 Vaughan Pratt
2009-03-14 3:38 Fred E.J. Linton
2009-03-14 3:22 Michael Shulman
2009-03-14 2:21 Charles Wells
2009-03-13 11:29 Andrew Stacey
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