modele_demo.py

Created by toronico07

Created on October 21, 2022

634 Bytes

Taux de natalité : N(n),
rapport entre le nombre annuel de naissances et la population totale moyenne à l'année n

Taux de mortalité : M(n),
rapport entre le nombre annuel de décés et la population totale moyenne à l'année n

Population : P(n)

Variation absolue de population : V(0) = 0,V(n+1) = P(n+1) - P(n)

Taux d'accroissement : T(n) = N(n) - M(n)
T(n+1) = V(n+1) / P(n)
Coefficient multiplicateur: C(n) = 1 + T(n)

Relation : P(n+1) = C(n+1) * P(n)

Cas particulier :
  si C est une fonction constante, alors pour n, m appartient à N
  donc :
    P(n+m) = C**m * P(n)
    C = (P(n+m) / P(n))**(1/m)

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