English: Poincaré disk, hemispherical and hyperboloid models are related by central projection from −1. Klein disk model is vertical projection from hemispheric model. Poincaré half-plane model here projected from the hemisphere model by rays from left end of Poincaré disk model.
Date
7 March 2012 (original upload date)
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This is what I mean get in there there and get them gone then who knows who theyvarecit does t matter this won't get you around me hearing to go first and be there to get whoever to it