C Torsional constants of the rotation about virtual-bond dihedral angles double precision v1,v2 integer itortyp,ntortyp,nterm common/torsion/v1(maxterm,maxtor,maxtor), & v2(maxterm,maxtor,maxtor),itortyp(ntyp),ntortyp,nterm C 9/18/99 - added Fourier coeffficients of the expansion of local energy C surface double precision b1,b2,cc,dd,ee,ctilde,dtilde,b2tilde integer nloctyp common/fourier/ b1(2,maxtor),b2(2,maxtor),cc(2,2,maxtor), & dd(2,2,maxtor),ee(2,2,maxtor),ctilde(2,2,maxtor), & dtilde(2,2,maxtor),b1tilde(2,maxtor),nloctyp