Mathesis: Recueil Mathématique À L'usage Des Écoles Spéciales Et Des Établissements D'instruction Moyenne, Volumes 20-21

Un recueil mathématique pour les écoles spéciales et les établissements d'instruction moyenne. Les volumes 20 à 21 couvrent l'arithmétique, la géométrie plane, la trigonométrie, et d'autres sujets importants.

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