8FUNCTIONS: lda - CYANA function

Synopsis: lda(<integer>) = <integer>

Number of the last atom that is affected by a change of dihedral
angle n.

For the dihedral angle with the given index this function returns the
index of the index of the last atom that is affected by a rotation
of this dihedral angle.  This function returns na+1, i.e. the number
of atoms plus 1, for backbone dihedral angles and for fixed dihedral
angles.

Optionally, the <integer> dihedral angle index can be replaced by a
string consisting of the dihedral angle name and the residue number,
separated by a blank or a period, '.'.
