premiere version utilisable du premier NB sur les variables

Notebooks/05_Les_variables.ipynb

Notebooks/imgs_chap5/img_exo_2spirales.png

Notebooks/imgs_chap5/img_exo_2spirales.py

Notebooks/imgs_chap5/img_exo_carres.png

Notebooks/imgs_chap5/img_exo_carres.py

Notebooks/imgs_chap5/img_exo_spirale.png

Notebooks/imgs_chap5/img_exo_spirale.py

Notebooks/imgs_chap5/img_exo_triangles.png

Notebooks/imgs_chap5/img_exo_triangles.py