mfi_heevx Interface
public interface mfi_heevx
Generic modern interface for HEEVX. Supports c, z. See also: cheevx, zheevx.
Module Procedures
public pure subroutine mfi_cheevx(a, w, uplo, z, vl, vu, il, iu, m, ifail, abstol, info)
Modern interface for cheevx. See also: mfi_heevx, f77_heevx. Computes selected eigenvalues and, optionally, eigenvectors of a complex Hermitian matrix.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| complex(kind=REAL32), | intent(inout) | :: | a(:,:) | |||
| real(kind=REAL32), | intent(out) | :: | w(:) | |||
| character(len=1), | intent(in), | optional | :: | uplo | ||
| complex(kind=REAL32), | intent(out), | optional | :: | z(:,:) | ||
| real(kind=REAL32), | intent(in), | optional | :: | vl | ||
| real(kind=REAL32), | intent(in), | optional | :: | vu | ||
| integer, | intent(in), | optional | :: | il | ||
| integer, | intent(in), | optional | :: | iu | ||
| integer, | intent(out), | optional | :: | m | ||
| integer, | intent(out), | optional, | target | :: | ifail(:) | |
| real(kind=REAL32), | intent(in), | optional | :: | abstol | ||
| integer, | intent(out), | optional | :: | info |
public pure subroutine mfi_zheevx(a, w, uplo, z, vl, vu, il, iu, m, ifail, abstol, info)
Modern interface for zheevx. See also: mfi_heevx, f77_heevx. Computes selected eigenvalues and, optionally, eigenvectors of a complex Hermitian matrix.
Arguments
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| complex(kind=REAL64), | intent(inout) | :: | a(:,:) | |||
| real(kind=REAL64), | intent(out) | :: | w(:) | |||
| character(len=1), | intent(in), | optional | :: | uplo | ||
| complex(kind=REAL64), | intent(out), | optional | :: | z(:,:) | ||
| real(kind=REAL64), | intent(in), | optional | :: | vl | ||
| real(kind=REAL64), | intent(in), | optional | :: | vu | ||
| integer, | intent(in), | optional | :: | il | ||
| integer, | intent(in), | optional | :: | iu | ||
| integer, | intent(out), | optional | :: | m | ||
| integer, | intent(out), | optional, | target | :: | ifail(:) | |
| real(kind=REAL64), | intent(in), | optional | :: | abstol | ||
| integer, | intent(out), | optional | :: | info |