i am new to WebWork, and i just got a free trial account. My first attempt was to use the Library browser to create a new set with several exercices in differentiation:
When i click Add All (or Add), i get this error message:
I didnt find any solution with google (some posts in this forum, but with no help for me).
So I need some help :)
professeur de mathématiques et d'informatique en Classes Préparatoires aux Grandes Ecoles, LIV France