!set exolist  =!char 1 to -2 of approxlin,champscalaire,deriv1,dersec,derdir,derpart,derpart2,
!set titlelist=!char 1 to -2 of Approximation linaire,Champ scalaire 2D,Composition I; drives partielles,Composition II Drives partielles,Drives directionnelles,Drives partielles 1,Drives partielles 2,
!set exototal =!itemcnt $exolist

