convexite.py

Created on December 12, 2023

370 Bytes

Convexe : tout point A et B distinct le segment AB est au-dessus de la courbe Cf
entre A et B
F est convexe sur I signifie que f’ croissante sur I et que pour tout x, f’’>=0
F est concave sur I signifie que f’ est décroissante sur I  et que pour tout x, 
f’’<=0
A est point d'inflexion de Cf si et seulement si f’’ s’annule en a en changeant 
de signe

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