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If "Graphs" fig. 1 and fig. 2 represent the same thing, shouldn't the fig. 2 C,D arc point the other way? Or was that done to demonstrate something I'm missing?


Should we email him about this? It'd be helpful to have this be an accurate guide.


I'm sure John would appreciate the chance to correct an error. His email address is at the bottom of the page.


looks like a bug .. good catch !




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