Visible to Intel only — GUID: GUID-E4958D39-AD12-4340-A310-B6C772495B45
?heevx function
Computes selected eigenvalues and, optionally, eigenvectors of a Hermitian matrix.
NOTE:
For a detailed description and reference information on this function, please visit:
?heevx function in Intel® oneAPI Math Kernel Library Developer Reference - C
?heevx function in Intel® oneAPI Math Kernel Library Developer Reference - Fortran
Fortran-77 Interface
Calling from Fortran:
call cheevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, rwork, iwork, ifail, info) call zheevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, rwork, iwork, ifail, info)
Calling from C:
cheevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, rwork, iwork, ifail, info); zheevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, rwork, iwork, ifail, info);
C Interface
lapack_int LAPACKE_cheevx(int matrix_layout, char jobz, char range, char uplo, lapack_int n, lapack_complex_float* a, lapack_int lda, float vl, float vu, lapack_int il, lapack_int iu, float abstol, lapack_int* m, float* w, lapack_complex_float* z, lapack_int ldz, lapack_int* ifail); lapack_int LAPACKE_zheevx(int matrix_layout, char jobz, char range, char uplo, lapack_int n, lapack_complex_double* a, lapack_int lda, double vl, double vu, lapack_int il, lapack_int iu, double abstol, lapack_int* m, double* w, lapack_complex_double* z, lapack_int ldz, lapack_int* ifail);
Parent topic: Symmetric Eigenproblems