Xah Lee wrote:
> On Dec 10, 12:37 pm, [EMAIL PROTECTED] wrote:
>> Ruby:
>>
>> def norm a
>> s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
>> a.map{|x| x/s}
>> end
>
> I don't know ruby, but i tried to run it and it does not work.
>
> #ruby
> def norm a
> s = Math.sqrt(a.map{|x|x*x}.inject{|x,y|x+y})
> a.map{|x| x/s}
> end
>
> v = [3,4]
>
> p norm(v) # returns [0.6, 0.8]
That is the correct answer.
> The correct result for that input would be 5.
No, you're confusing normalization with length.
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Dr Jon D Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?u
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