Shay wrote:
> I noticed this while browsing through some stuff I'd cut and pasted into 
> my .vimrc.
> 
> syn match Float "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
> " floating point number, without dot, with exponent
> " Author:    Jean-Marc Vanel <http://jmvanel.free.fr/>
> 
> Though this might be some kind of C thing, but tried it in Python:
>  >>> 1+0
> 1
>  >>> 2-1
> 1
>  >>> 1*1
> 1
>  >>> 1/1
> 1
>  >>> 3%2
> 1
>  >>> 1e0
> 1.0
>  >>> pow(1,1)
> 1
>  >>>
> 
> That last one especially throws me. Why is 1e0 a float? Simply to cover 
> instances where NeN represents a float value with no decimal points 
> anywhere in the expression? Is the language's interpretation that 
> "dumb"? If that's the case, why doesn't pow always return a float?

1e0 denotes scientific notation.  Scientific notation is defined as an 
integer [1..9] followed by a decimal point, which then requires at least 
one digit after it.

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

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