Developer Reference
Intel® oneAPI Math Kernel Library LAPACK Examples
ID
766877
Date
3/31/2023
Public
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Visible to Intel only — GUID: GUID-76FD301F-FAFD-49F2-BC1D-730B8B70A763
?syevr function
Computes selected eigenvalues and, optionally, eigenvectors of a real symmetric matrix using the Relatively Robust Representations.
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 ssyevr(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, isuppz, work, lwork, iwork, liwork, info) call dsyevr(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, isuppz, work, lwork, iwork, liwork, info)
Calling from C:
ssyevr(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, isuppz, work, lwork, iwork, liwork, info); dsyevr(jobz, range, uplo, n, a, lda, vl, vu, il, iu, abstol, m, w, z, ldz, isuppz, work, lwork, iwork, liwork, info);
C Interface
lapack_int LAPACKE_ssyevr(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* isuppz); lapack_int LAPACKE_dsyevr(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* isuppz);
Parent topic: Symmetric Eigenproblems