http://hackaday.com/2017/07/28/opene...ely-difficult/

In message , Gareth's Downstairs Computer
writes


http://hackaday.com/2017/07/28/opene...ic-field-solvi
ng-merely-difficult/

Looks interesting. I might even be able to model yagi boom effects.

I tried the waveguide tutorial , but the matlab scripting front end
fails. The constant c0 ( speed of light) was missing and the FDTD line
borks.

??? Undefined function or method 'InitFDTD' for input arguments of type
'char'.

Error in == ems_waveguide at 41
FDTD = InitFDTD('NrTS',1e4, 'OverSampling', 5);

I'm running an old Matlab R2010b and I know later Matlab versions aren't
backward compatible.

Maybe Octave ( which is free) would be better. Upgrading Matlab is
expensive.

Brian


--
Brian Howie

On 28/07/2017 19:39, Brian Howie wrote:
In message , Gareth's Downstairs Computer
writes


http://hackaday.com/2017/07/28/opene...ic-field-solvi
ng-merely-difficult/

Looks interesting. I might even be able to model yagi boom effects.

I tried the waveguide tutorial , but the matlab scripting front end
fails. The constant c0 ( speed of light) was missing and the FDTD line
borks.

??? Undefined function or method 'InitFDTD' for input arguments of type
'char'.

Error in == ems_waveguide at 41
FDTD = InitFDTD('NrTS',1e4, 'OverSampling', 5);

I'm running an old Matlab R2010b and I know later Matlab versions aren't
backward compatible.

Maybe Octave ( which is free) would be better. Upgrading Matlab is
expensive.


Apologies, didn't note the Matlab dependency.

Only use Matlab once when at Nokia to analyse the world-wide production
looking for bugs in the test software, Cpk, 6 sigma and all that.

In message , Gareth's Downstairs Computer
writes
On 28/07/2017 19:39, Brian Howie wrote:
In message , Gareth's Downstairs Computer
writes


http://hackaday.com/2017/07/28/opene...ic-field-solvi
ng-merely-difficult/
Looks interesting. I might even be able to model yagi boom effects.
I tried the waveguide tutorial , but the matlab scripting front end
fails. The constant c0 ( speed of light) was missing and the FDTD
line borks.
??? Undefined function or method 'InitFDTD' for input arguments of
type 'char'.
Error in == ems_waveguide at 41
FDTD = InitFDTD('NrTS',1e4, 'OverSampling', 5);
I'm running an old Matlab R2010b and I know later Matlab versions
aren't backward compatible.
Maybe Octave ( which is free) would be better. Upgrading Matlab is
expensive.


Apologies, didn't note the Matlab dependency.

Only use Matlab once when at Nokia to analyse the world-wide production
looking for bugs in the test software, Cpk, 6 sigma and all that.



It's good for array and matrix manipulation. I used it extensively at
work for image processing. The later toolboxes include Software Defined
Radio blocks, but at £1800 for the latest version, it would be a bit
extravagant.

Scilab does much the same as Matlab, and Octave as mentioned, but I
don't know a great deal about that one.

Brian
--
Brian Howie

On Fri, 28 Jul 2017 21:32:39 +0100, Gareth's Downstairs Computer
wrote:

On 28/07/2017 19:39, Brian Howie wrote:
In message , Gareth's Downstairs Computer
writes


http://hackaday.com/2017/07/28/opene...ic-field-solvi
ng-merely-difficult/

Looks interesting. I might even be able to model yagi boom effects.

I tried the waveguide tutorial , but the matlab scripting front end
fails. The constant c0 ( speed of light) was missing and the FDTD line
borks.

??? Undefined function or method 'InitFDTD' for input arguments of type
'char'.

Error in == ems_waveguide at 41
FDTD = InitFDTD('NrTS',1e4, 'OverSampling', 5);

I'm running an old Matlab R2010b and I know later Matlab versions aren't
backward compatible.

Maybe Octave ( which is free) would be better. Upgrading Matlab is
expensive.


Apologies, didn't note the Matlab dependency.

Only use Matlab once when at Nokia to analyse the world-wide production
looking for bugs in the test software, Cpk, 6 sigma and all that.


I got it to run on Matlab. It was a path setting problem . RTFI
applies. ;-0

ran the waveguide and patch antenna tutorials ok, but the helical
antenna seems to be taking a while.

Cheers

Brian

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus