Add author - physique q3
Correction matlab example
Merge pull request #110 from anpar/methodnum

Correction matlab example
Ajout effet photo-électrique, compton, etc
Merge pull request #111 from anpar/master

q3/math - Ajout rappels, points de branchements, branches, coupures, etc
Merge pull request #112 from anpar/physique-q3

Ajout effet photo-électrique, compton, etc
Definition of complexes

+ definition of mod and arg based on polar coordinates
+ interval for Arg : [-pi, pi[, not ]-pi, pi]
+ definition of complex exp.