Ajout d'une formule et de deux exemples
Clarification fonction d'onde
Remove old comments
Misspelling correction
Merge pull request #115 from anpar/math-q3

Ajout d'une formule et de deux exemples
Précision et corrections orthographiques
Ajout dégénérescence
Definition of branch, branch point, branch cuts...

Try to make the goal easier to understand and the definitions (a bit) more
rigorous.
Example for branches

function sqrt(z*(z-1))

Correction of a bug (not shown before ?) in inclusion of
riemann_surface_log.jpg.
Merge pull request #116 from anpar/physique-q3

Clarification fonction d'onde
Address comments of Gp2mv3/Syntheses#117

+ Label position
+ Explaination of "feuille"
Correction of details
Definition of the integral of a complex function.
Merge pull request #117 from cassiersg/math3

Math3 : complexes
Remove pdf version enforcing - physique q3
Remove trailing whitespaces - physique q3
Remove trailing whitespaces - math q3