mots réservés » utilisés par le langage lui-même (if, elif, while, for, else, print,...).
* Instruct... cs.python.org/3/reference/compound_stmts.html#the-if-statement|documentation officielle]] ou [[http://... ou "faux" (false). Exemple :
<code python>
a = 0
if a > 0 :
print("a est positif")
print("car... " sous-tend une condition alternative. un simple "if" correspond à une expression conditionnelle.
*
44/can-an-atom-have-more-than-8-valence-electrons-if-not-why-is-8-the-limit|Can an atom have more than 8 valence electrons? If not, why is 8 the limit ?]]
* [[http://chemistr... tackexchange.com/questions/6751/how-does-one-tell-if-a-specific-molecule-is-acidic-or-basic|How does one tell if a specific molecule is acidic or basic?]]
* [[h
'
intag = [False]
def chk(c):
if intag[0]:
intag[0] = (c != '>')
... return True
return ''.join(c for c in s if chk(c))
def find_words(text, search):
''' Se... /stackoverflow.com/questions/5319922/python-check-if-word-is-in-a-string
'''
dText = {}
dS... :
for search_word in dSearch:
if hash(search_word) == hash(text_word):
fit from quite different types of instruction]].
If you ask a history student to read a source docume... e cues.
===== 2. You understand concepts better if you discover them for yourself =====
I recently ... imminent. Do I now understand toilets better than if a plumber had been alongside me, explaining exact... a-cognition is a short-cut to expertise =====
So if simply imitating the behaviour of an expert will
lect an Ubuntu image when flashing your SD card. If you are on Ubuntu, run: <code>sudo snap install r... n the directory
for FILE in "$DIR"/*
do
# Check if the file is older than 8 days
if [[ -f "$FILE" && $(date -r "$FILE" +%s) -lt $CUTOFF ]]
then
# Check if the file's date is the first day of the month
Rep=[]
for i in range(Mlin):
if i!=m:
for j in range(Mlin):
if j!=n:
result.append... " retourne le déterminat de la matrice A"
if len(A)==1:
return A[0][0]
else:... rime 1ere ligne et colonne de A
if j%2==0: #(-1)^(i+j) * Det("matrice où on retire 1
(n):
for x in range(2,int(n**0.5)+1):
if n % x == 0:
return False
return T... f primelist(n):
return [a for a in range(2,n) if isprime(a)]
p=primelist(1000)
print(p)
</code>
... :
ncur += 1
return [a for a in li if a != 0] # renvoie une liste avec les élements no... com/software-development/python/code/216880/check-if-a-number-is-a-prime-number-python]]
* [[http://
source of this page by pressing "Edit this page". If you want to try something, just use the [[playgro... ll.
**Paragraphs** are created from blank lines. If you want to **force a newline** without a paragra... without it.
You should use forced newlines only if really needed.
===== Links =====
DokuWiki suppo... can be enabled in the [[doku>config]] file. Hint: If DokuWiki is a link, then it's enabled.
* When a
A living cell dies
of overcrowding or loneliness if it has more than three or fewer than
two neighbours; a dead cell is brought to life if it has exactly three
neighbours (determined in Ce... will be alive at the next iteration."""
if self.state==Cell.LIVE and \
(numNeigh... ,newstate):
self.state = newstate
if self.state==Cell.LIVE:
self["bg"] = "
= []
for color, A, B, C in triangles:
if color == 0:
# Subdiviser des petits t... tourne cet entier"""
split = s.split(" ")
if len(split) == 2:
a = convert_to_positive_... b = convert_to_positive_int(split[1])
if a != None and b != None:
return (a, b... haine s est un entier, retourne cet entier"""
if s.isdigit() and long(s) > 0:
return l
ple are not informed; how can you have an opinion if you are not informed? If everybody always lies to you, the consequence is not that you believe the li... he remaining uncertainty regarding causation and, if indeed causal mechanisms are at play, the very sm... ://www.sciencealert.com/we-literally-have-no-idea-if-microplastics-in-our-water-is-bad-for-our-health|
ndice n de la suite de Fibonacci
"""
...
if __name__ == '__main__':
# le programme "princ...
Le rôle de la structure conditionnelle **<nowiki>if __name__ == '__main__':</nowiki>** est de n'exécu... la suite de Fibonacci
"""
a, b = 0, 1
if n == 0:
return a
elif n == 1:
... range(1,n):
a, b = b, a + b
return b
if __name__ == '__main__':
i = int(input("Suite
ser (valeur 0)
pH = 0. #pH de départ
if n==3:
Ka1=10**(-pKa1)
Ka2=10**(-p... ra le champs ou l'on donnera le pKa1
if n > 1 : #paramètre demander si la m... e champs ou l'on donnera le pKa2
if n == 3 : #paramètre demander si la ... .get())
pKa2 = 0
pKa3 = 0
if n > 1:
pKa2 = float (champ2.get())
nelle ====
Instruction d’exécution conditionnelle if...elif...else (si...sinon-si...autrement)
* Commence par **if expression** :
* Si l’expression est vraie, le ... code python>
a = int(input('Donnez une note ? '))
if a >= 18:
print("Excellent")
elif a >= 16:
... , dt, flag
x1, y1 = x1 +vx*dt, y1 + vy*dt
if x1 < 0 or x1 > 220:
vx=-vx
if y1 < 0
été mise pour permettre au programme de continuer
if ka3 ==0:
precipites[p].pop() #la valeur 0 pos... divise par les ka, On la retire donc de la liste
if ka2 ==0:
precipites[p].pop() #idem
if ka1 ==0:
precipites[p].pop() #idem
a = float (pr... (G/R)*((1/T)-(1/Ti))) #Relation de Van't Hof
if len(precipites[p]) == 5: #si la longueur de la l