---
name: "derrec.f"
section: "3"
platform: "linux"
package: "lapack-doc"
version: "3.12.1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/derrec.f"
---

# derrec.f(3)

## NAME

TESTING/EIG/derrec.f

## SYNOPSIS

### Functions/Subroutines

subroutine **derrec** (path, nunit)\
 **DERREC**

## Function/Subroutine Documentation

### subroutine derrec (character\*3 path, integer nunit)

**DERREC**

**Purpose:**

```
!>
!> DERREC tests the error exits for the routines for eigen- condition
!> estimation for DOUBLE PRECISION matrices:
!>    DTRSYL, DTRSYL3, DTREXC, DTRSNA and DTRSEN.
!>
```

**Parameters**

*PATH*

```
!>          PATH is CHARACTER*3
!>          The LAPACK path name for the routines to be tested.
!>
```

*NUNIT*

```
!>          NUNIT is INTEGER
!>          The unit number for output.
!>
```

**Author**

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line **55** of file **derrec.f**.

## Author

Generated automatically by Doxygen for LAPACK from the source code.