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Poincaré and Beltrami–Klein disk models
Author:
Lionel GERVAIS
You can watch this excellent YouTube video to get explanations about the Poincaré and Beltrami-Klein models:
Non-Euclidean geometry | Math History | NJ Wildberger
GeoGebra
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bewijs stelling van Pythagoras
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အခြေခံ data အခေါ်အဝေါ်များ
SetAxesRatio 1-1 and Set dimensions
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