Function ssbgvx_

Computes selected eigenvalues, and optionally, the eigenvectors of a real generalized symmetric-definite banded eigenproblem, of the form A*x=(lambda)*B*x. A and B are assumed to be symmetric and banded, and B is also positive definite.

extern(C) void ssbgvx_ (
  char* jobz,
  char* range,
  char* uplo,
  int* n,
  int* ka,
  int* kb,
  float* ab,
  int* ldab,
  float* bb,
  int* ldbb,
  float* q,
  int* ldq,
  float* vl,
  float* vu,
  int* il,
  int* iu,
  float* abstol,
  int* m,
  float* w,
  float* z,
  int* ldz,
  float* work,
  int* iwork,
  int* ifail,
  int* info,
  int jobz_len,
  int range_len,
  int uplo_len
);