!set exolist  =!char 1 to -2 of angle,airellelo,airetriang,combi,combi2,combi4,combifind,combifind2,givenscale,givenvec,rellin,perpvec,perp2,vecscal,lenvec,lenvec2,parallelo,volpara,voltetra,
!set titlelist=!char 1 to -2 of Angle,Area of parallelogram,Area of triangle,Combination,Combination 2 vectors,Combination 4 vectors,Find combination,Find combination 2 vectors,Given scalar products,Given vector product,Linear relation,Perpendicular and vector product,Perpendicular to two vectors,Scalar and vector products,Vector product and length,Vector product and length II,Vertex of parallelogram,Volume of parallelepiped,Volume of tetrahedron,
!set exototal =!itemcnt $exolist

