Re: [Math4u] Re: 4 situations

Which symbols are used depends heavily on which medium is used. Since this
is a mailing list, the medium is text typed into a computer. Mostly out of
practical considerations, it is a very common convention to use a slash for
just about anything, either division, ratio or fraction.
(This is not the only convention though; I'm not sure when you joined this
list, but we've recently had quite a couple of emails about this subject.)

Grtz,
Rob

-------- Original-Nachricht --------
> Datum: Sat, 22 Dec 2007 02:13:55 -0000
> Von: "testimprove" <bonnerentree2003@yahoo.fr>
> An: Math4u@yahoogroups.com
> Betreff: [Math4u] Re: 4 situations

> hi,
>
> Slope can be described as
>
>
>
> rise ÷ run
>
>
>
> the rise and the run are MEASURES OF
>
> THE SAME TYPE. So here we can say that the Slope is a ratio
>
> for example 9cm/3cm = 3(which is a pur number)
>
> Am -I wrong?
>
> if what I wrote is correct then I can say :
>
> the ratio rise to run or 9 : 3
>
> notice I used a symbol ÷ to indicate
>
> division.
>
> when we write with pencil and paper we don't use ÷
>
> we simply write a colon (:) or a slash or a
>
> horizontal bar.So the colon can be used to
>
> express a ratio or a divsion.
>
> I mention this, because while I was trying to get
>
> some hints from the messages put in this forum,
>
> I came across a rude replique from Briand to
>
> some persons in this forum because they have
>
> used the colon to express a division.
>
> So could tell which symbols to use for :
>
> - a division
>
> - a ratio
>
> - a fraction
>
>
>
> regards
>
> badriya
>

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