Re: decimal point/comma (was conplaneteering)
| From: | Carsten Becker <naranoieati@...> |
|---|
| Date: | Saturday, February 19, 2005, 22:15 |
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On Friday 18 February 2005 14:44 +0100, Mark J. Reed wrote:
> But in typeset mathematics books long before computers,
> multiplication was indicated by either simple
> juxtaposition or a dot. As I said, I've personally never
> seen × and ÷ anywhere other than in early-grade workbooks
> and on calculator keys.
The Maths textbooks I had have always been using + - ·
(middot) and : for addition, substraction, multiplication
and division. Fractions are written as
a
---
b
Since we've been dealing with algebra, you can of course
omit the · sign in unambiguous environments, i.e. between
brackets or variables.
Carsten
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