Module SLCNT in IMSLMCalculates the indices of eigenvalues of a Sturm-Liouville problem in a specified subinterval of the real line.
CALL SLCNT (ALPHA, BETA, CONS, COEFFN, ENDFIN, IFIRST, NTOTAL)| I1b3 | Eigenvalue (e.g., Sturm-Liouville) multipoint boundary value problems for ordinary differential equations |