suites.py

Created by vovenastream

Created on January 17, 2024

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suite arithmetiques:
  suite pour laquelle la diff
  entre deux termes consequtif
  a son precedent est contant
  obtient par addition de constant
  
la formule de definition: 
 par recurence: Un+1=Un+r
 explicite:Un=U0+n*r
           Un=Up+(n-p)*r

allure du nuage de point d'une
suite arithmétique est allignes

1+2+...+n=n(n+1)/2

U0+U1+...+Un=(n+1)U0+Un/2
n+1 fois la moyenne du 1er 
et du dernier terme de la somme

suite geometriques:
  suite pour laquelle le quotien
  entre deux nombre consecutif
  est constant
  obtient par multiplication 
  
formule de definition:
  par recurence: Un+1=Un*Q
  explicite: Un=U0*q**n
             Un=Up*q**n-p
 
allure du nuage de point une 
courbe exponentielle

1+q+q2+...+qn=1-q**n+1/1-q

U0+U1+U2+...+Un=U0*1-q**n+1/1-q
1er terme * somme des q

  

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