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Topic: Help: translation of two german words in a Felix Klein's drawing
Replies: 5   Last Post: Jan 21, 2011 11:59 AM

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Humberto Bortolossi

Posts: 66
Registered: 5/20/05
Re: Help: translation of two german words in a Felix Klein's drawing
Posted: Jan 21, 2011 11:59 AM
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Hi Gottfried!

Thank you very much!

Now you've translated the words, I ask myself: why "y" is negative in
the 4th quadrant where r is odd and rho is even? For x positive, y
should be also positive. Is this a Klein's mistake?

All the best, Humberto.

On 21 jan, 12:09, Gottfried Helms <> wrote:
> Am 21.01.2011 14:50 schrieb Humberto Bortolossi:> Greetings!

> > The picture available at
> >
> > was done by Felix Klein in one of his protocols. I'm trying to
> > discover what is written in the second, third and forth quadrants (I
> > suppose the words are written in german).

> 2nd Quadrant:
>   "r gerade"             : "r even"
>   "<greek rho> ungerade" : "<greek rho> odd"
> 3nd Quadrant:
>   "r ungerade"           : "r odd"
>   "<greek rho> ungerade" : "<greek rho> odd"
> 4nd Quadrant:
>   "r ungerade"         : "r odd"
>   "<greek rho> gerade" : "<greek rho> even"

> > I'm also curious to know exactly what Klein was studying when he made
> > this picture. I've tried to search for this information at

> >
> ??? Don't know too.
> HTH -
> Gottfried Helms

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