Re: qz

[Dirk Laurie]

Rolf Fabian skryf:
> Hi, 
> 
> #at octaves promt
> 
> try :> help qzval
> which pops up the following:
> 
> qzval is a builtin function
> X = qzval (A, B)
> compute generalized eigenvalues of the matrix pencil (A - lambda B).
> A and B must be real matrices.
> 

In Octave 2.1.30 I get:

|» help qzval
|qzval is the user-defined function from the file
|/usr/local/share/octave/2.1.30/m/control/obsolete/qzval.m
| 
| - Function File:  qzval (A, B)
|     Compute generalized eigenvalues of the matrix pencil
|          (A - lambda B).
| 
|     A and B must be real matrices.
| 
|     *Note* `qzval' is obsolete; use `qz' instead.   

`qz' is a built-in function whereas `qzval' is an m-file.
`qz' can compute generalized eigenvectors whereas `qzval' only
computes eigenvalues.

Dirk



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