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Re: decimal point/comma (was conplaneteering)

From:Mark J. Reed <markjreed@...>
Date:Tuesday, February 15, 2005, 20:06
On Tue, Feb 15, 2005 at 08:45:40PM +0100, Philip Newton wrote:
> On Tue, 15 Feb 2005 18:05:06 +0000, Keith Gaughan <kmgaughan@...> wrote: > > Strictly speaking, it's a raised dot that's used in the > > anglophone world > > Ah! Nostalgia.
Indeed. The raised decimal point goes with those mixed-height numerals (which someone was talking about on here for use in conlang orthography since they blend with letters better). It's a dated usage now, however; even in fancily typeset mathematics, the decimal point is the same as a full stop. These days, a raised dot is a symbol for multiplication, used when simple juxtaposition is ambiguous or for special cases like the vector dot product. Which reminds me - where did the × and ÷ symbols come from? Everyone learns them in early grades, and they show up as labels on calculator keys, but they're never used in actual mathematics notation . . . -Marcos


Phil Bordelon <phil@...>