David
Not actually correct.
It does signify a range.
It refers to the two numbers rather than the interval between them.
The classic example is:-
?4 = ± 2
This uses the sign correctly.
It is more obvious in the equation for solving quadratic equations:-
Where ax2 + bx + c = 0 x = [ - b ± ?( b2 - 4ac) ] / 2a
This is quite obviously not a range, but the 2 values which satisfy the
equation.
And the § symbol is known as the section sign.
And I am not sure, but think it is used to refer to a paragraph in the
bible.
For instance:-
Genesis Chapter 1 §3 And God said, Let there be light: and there was
light.
Hope this puts your mind at rest!!!
Keith
==============================================
> The ± symbol is used for number ranges. For example 17 plus or minus 2
> ie 15 to 19 would be 17 ± 2.
>
> David
>
>> Can anyone tell me what is the name for § ?
>> Has anyone found a use for ±?
>> I found some thoughts here:
>> http://discussions.apple.com/thread.jspa?threadID=838938
>>
>>
>
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