First Commit

Exercice 1 à 3
Q3
Begining E3 Q3
Q4 & Q5 (valid?)
E3 Q3 matrix/matrix + solved
E3 Q4 isTrue? - Q3 error nan corrected
Q6 finit, go voir commentaire fonction proba_conditionnelle (je te hais)
float to int in indep_i & comments
Merge branch 'feature/tamazy' into develop
doesn't work
Merge branch 'feature/test_X0' into feature/test_noX0
not working at all
E3 Q6 gives good rslt: waiting for Q7 to be tested
Merge branch 'feature/test_noX0' into develop
Merge branch 'develop'