<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394">I find an interesting-tho-trivial bit of culture shock in going between North America and elsewhere (generally, in my experience): floor designations in buildings.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394">In North America the "first floor" of a building is usually considered to be where the lobby and ground exit is located.</div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394">Elsewhere, it's usually referred to as the "main floor", and the floor above that is the first floor. Indeed, in elevators of such buildings the "main floor" is often indicated with a zero button (and the basement is "-1" rather than "B").</div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394">Maybe there's an anthropology lesson somewhere on how and why these ideas diverged.<br></div><div class="gmail_default" style="font-family:tahoma,sans-serif;color:#0b5394"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div style="text-align:center"><div style="text-align:left">Evan Leibovitch, <span style="font-size:12.8px">Toronto Canada</span></div><div style="text-align:left"><span style="font-size:12.8px">@evanleibovitch / </span><span style="font-size:12.8px">@el56</span></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 28, 2023 at 3:23 AM D. Hugh Redelmeier via talk <<a href="mailto:talk@gtalug.org">talk@gtalug.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">| From: o1bigtenor via talk <<a href="mailto:talk@gtalug.org" target="_blank">talk@gtalug.org</a>><br>
<br>
| (Except for the idea of 0 being an actual counter as it is in only the computing<br>
| world.)<br>
<br>
I think that you are referring to C using 0 as the subscript for the<br>
first element of an array.<br>
<br>
An interesting issue.<br>
<br>
I agree that 0 should not be an ordinal number. In grade school we<br>
called these ordinal Natural Numbers. However mathematicians usually<br>
think that 0 is a Natural number. Read the first paragraph of<br>
<<a href="https://en.wikipedia.org/wiki/Natural_number" rel="noreferrer" target="_blank">https://en.wikipedia.org/wiki/Natural_number</a>><br>
<br>
Zero is a good cardinal number (for designating the size of sets). In<br>
grade school we called them Whole Numbers.<br>
<br>
Anything more inclusive has zero: integers, rationals, real,<br>
imaginary, complex, ...<br>
<br>
BUT:<br>
<br>
Any experienced programmer finds the C convention more convenient in<br>
many little ways.<br>
<br>
I think that many mathematicians number elements of sequences starting<br>
at 0.<br>
<br>
The lowest term of a polynomial in x will be the x^0 term.<br>
<br>
On the other hand, I've not seen a math matrix with a 0 row or column.<br>
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</blockquote></div>