# alahd.f - Man Page

TESTING/LIN/alahd.f

## Synopsis

### Functions/Subroutines

subroutine alahd (iounit, path)
ALAHD

## Function/Subroutine Documentation

### subroutine alahd (integer iounit, character*3 path)

ALAHD

Purpose:

` ALAHD prints header information for the different test paths.`
Parameters

IOUNIT

```          IOUNIT is INTEGER
The unit number to which the header information should be
printed.```

PATH

```          PATH is CHARACTER*3
The name of the path for which the header information is to
be printed.  Current paths are
_GE:  General matrices
_GB:  General band
_GT:  General Tridiagonal
_PO:  Symmetric or Hermitian positive definite
_PS:  Symmetric or Hermitian positive semi-definite
_PP:  Symmetric or Hermitian positive definite packed
_PB:  Symmetric or Hermitian positive definite band
_PT:  Symmetric or Hermitian positive definite tridiagonal
_SY:  Symmetric indefinite,
with partial (Bunch-Kaufman) pivoting
_SR:  Symmetric indefinite,
with rook (bounded Bunch-Kaufman) pivoting
_SK:  Symmetric indefinite,
with rook (bounded Bunch-Kaufman) pivoting
( new storage format for factors:
L and diagonal of D is stored in A,
subdiagonal of D is stored in E )
_SP:  Symmetric indefinite packed,
with partial (Bunch-Kaufman) pivoting
_HA:  (complex) Hermitian ,
with Aasen Algorithm
_HE:  (complex) Hermitian indefinite,
with partial (Bunch-Kaufman) pivoting
_HR:  (complex) Hermitian indefinite,
with rook (bounded Bunch-Kaufman) pivoting
_HK:  (complex) Hermitian indefinite,
with rook (bounded Bunch-Kaufman) pivoting
( new storage format for factors:
L and diagonal of D is stored in A,
subdiagonal of D is stored in E )
_HP:  (complex) Hermitian indefinite packed,
with partial (Bunch-Kaufman) pivoting
_TR:  Triangular
_TP:  Triangular packed
_TB:  Triangular band
_QR:  QR (general matrices)
_LQ:  LQ (general matrices)
_QL:  QL (general matrices)
_RQ:  RQ (general matrices)
_QP:  QR with column pivoting
_TZ:  Trapezoidal
_LS:  Least Squares driver routines
_LU:  LU variants
_CH:  Cholesky variants
_QS:  QR variants
_QT:  QRT (general matrices)
_QX:  QRT (triangular-pentagonal matrices)
_TS:  QR routines for tall-skinny and short-wide matrices
_HH:  Householder reconstruction for tall-skinny matrices
The first character must be one of S, D, C, or Z (C or Z only
if complex).```
Author

Univ. of Tennessee

Univ. of California Berkeley

NAG Ltd.

Definition at line 106 of file alahd.f.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page alahd(3) is an alias of alahd.f(3).

Tue Nov 28 2023 12:08:42 Version 3.12.0 LAPACK