C#3.0 and lambdas

Scott David Daniels Scott.Daniels at Acm.Org
Wed Sep 21 18:02:18 CEST 2005


Roel Schroeven wrote:
> ... 
> Christophe schreef:
>> ... 
>>And what about a function which computes the line length ?
> 
> That would have been a better example indeed, since the *p1 trick
> doesn't work there.
> 
> def euclidian_distance((x1, y1), (x2, y2)):
>     return math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
> 
> That's a lot nicer, I think, than this:
> 
> def euclidian_distance(p1, p2):
>     return math.sqrt((p2[0] - p1[0])**2 + (p2[1] - p1[1])**2)

But not massively nicer than:

     def euclidian_distance(p1, p2):
         (x1, y1), (x2, y2) = p1, p2
         return math.sqrt((x2 - x1)**2 + (y2 - y1)**2)

--Scott David Daniels
Scott.Daniels at Acm.Org



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