# dget35.f - Man Page

TESTING/EIG/dget35.f

## Synopsis

### Functions/Subroutines

subroutine **dget35** (rmax, lmax, ninfo, knt)**DGET35**

## Function/Subroutine Documentation

### subroutine dget35 (double precision rmax, integer lmax, integer ninfo, integer knt)

**DGET35**

**Purpose:**

DGET35 tests DTRSYL, a routine for solving the Sylvester matrix equation op(A)*X + ISGN*X*op(B) = scale*C, A and B are assumed to be in Schur canonical form, op() represents an optional transpose, and ISGN can be -1 or +1. Scale is an output less than or equal to 1, chosen to avoid overflow in X. The test code verifies that the following residual is order 1: norm(op(A)*X + ISGN*X*op(B) - scale*C) / (EPS*max(norm(A),norm(B))*norm(X))

**Parameters***RMAX*RMAX is DOUBLE PRECISION Value of the largest test ratio.

*LMAX*LMAX is INTEGER Example number where largest test ratio achieved.

*NINFO*NINFO is INTEGER Number of examples where INFO is nonzero.

*KNT*KNT is INTEGER Total number of examples tested.

**Author**Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line **77** of file **dget35.f**.

## Author

Generated automatically by Doxygen for LAPACK from the source code.

## Referenced By

The man page dget35(3) is an alias of dget35.f(3).

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