spgvx

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.

  1. void spgvx(f_int itype, char jobz, char range, char uplo, f_int n, f_float* ap, f_float* bp, f_float* vl, f_float* vu, f_int il, f_int iu, f_float* abstol, f_int m, f_float* w, f_float* z, f_int ldz, f_float* work, f_int* iwork, f_int ifail, f_int info)
  2. void spgvx(f_int itype, char jobz, char range, char uplo, f_int n, f_double* ap, f_double* bp, f_double* vl, f_double* vu, f_int il, f_int iu, f_double* abstol, f_int m, f_double* w, f_double* z, f_int ldz, f_double* work, f_int* iwork, f_int ifail, f_int info)

Meta