Re: Calling sqrt() in a dynamic function

[Paul Kienzle]

Do you want element-wise sqrt?  Or do you want to find B such
that B*B = A for some matrix A?

The latter is available in src/DLD-FUNCTIONS/sqrtm.cc.  You
could probably move it into liboctave leaving just the shell
in sqrtm.cc, sending a patch to John when you do.  Otherwise,
the only way you will be able to access it is via feval.

The former is defined in mappers.cc.  I don't know if it is
possible to use a mapper directly from an oct-file.  Let us
know (e.g., on wiki.octave.org) if you succeed.

Paul Kienzle
address@hidden

On Feb 10, 2004, at 12:29 PM, Thomas Weber wrote:

> Hi,
> is there a way to call sqrt(X) (X a real matrix) from an .oct-file
> without using feval?
>
> I've grepped through the sources, but I am unable to find the 
> definition
> of sqrt() for matrix arguments.
>
> Best regards
> Thomas
>
> P.S. Please don't cc me, I'm subscribed to the list.
>
>
>
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
>
> Octave's home on the web:  http://www.octave.org
> How to fund new projects:  http://www.octave.org/funding.html
> Subscription information:  http://www.octave.org/archive.html
> -------------------------------------------------------------



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------