Function sspgvx_
Computes selected eigenvalues, and optionally, eigenvectors of a generalized symmetric-definite generalized eigenproblem, Ax= lambda Bx, ABx= lambda x, or BAx= lambda x, where A and B are in packed storage.
extern(C) void sspgvx_
(
int* itype,
char* jobz,
char* range,
char* uplo,
int* n,
float* ap,
float* bp,
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
);