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 <he...@uni-kassel.de> wrote: > Am 21.01.2011 14:50 schrieb Humberto Bortolossi:> Greetings! > > > The picture available at > > >http://www.professores.uff.br/hjbortol/tmp/klein-01.jpg > > > 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 > > >http://www.librarieswithoutwalls.org/image-collections/felix-klein-pr... > > ??? Don't know too. > > HTH - > > Gottfried Helms