Visible to Intel only — GUID: GUID-178F830B-F3AB-45B5-9D14-9CA6C7ADDC5A
?syevx function
Computes selected eigenvalues and, optionally, eigenvectors of a symmetric matrix.
NOTE:
For a detailed description and reference information on this function, see the Intel® oneAPI Math Kernel Library Developer Reference.
Fortran-77 Interface
Calling from Fortran:
call ssyevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, iwork, ifail, info) call dsyevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, iwork, ifail, info)
Calling from C:
ssyevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, iwork, ifail, info); dsyevx(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, work, lwork, iwork, ifail, info);
C Interface
lapack_int LAPACKE_ssyevx(int matrix_layout, char jobz, char range, char uplo, lapack_int n, float* a, lapack_int lda, float vl, float vu, lapack_int il, lapack_int iu, float abstol, lapack_int* m, float* w, float* z, lapack_int ldz, lapack_int* ifail); lapack_int LAPACKE_dsyevx(int matrix_layout, char jobz, char range, char uplo, lapack_int n, double* a, lapack_int lda, double vl, double vu, lapack_int il, lapack_int iu, double abstol, lapack_int* m, double* w, double* z, lapack_int ldz, lapack_int* ifail);
Parent topic: Symmetric Eigenproblems