ex9-11 finis

# Exercice 9
# Combinaison
print(choose(4,0))#1
print(choose(4,1))#4
print(choose(4,2))#6
print(choose(4,3))#4
print(choose(4,4))#1
# Exercice 10
print(abs(-6))#6 : valeur absolue
print(floor(pi))#3 : arrondi inf
print(round(pi, 3))#3.142 : arrondi a la 3e decimale
print(trunc(pi))#3 : partie decimale tronquee
print(floor(-pi))#-4 : arrondi inf
print(trunc(-pi))#-3 : partie decimale tronquee
#Exercice 11
print(log(10))#2.302585
print(log(2,2))#1
print(log(exp(2)))#2
print(log(exp(1)))#1
print(log(1000000000, 10))#9
print(log(1048576, 2))#20
print(exp(3))#20.08554
print(exp(-2))#0.1353353