[Ktechlab-devel] Slowmatrix! =)

P Zoltan zoltan.padrah at gmail.com
Sun Sep 20 16:52:48 UTC 2009


On Sat, 19 Sep 2009 13:34:52 +0200, Niels Egberts  
<niels.egberts at gmail.com> wrote:

>>>   Bonus: the example 555 circuit ( hepl -> examples -> 555s ->  
>>> internals )
>>> makes ktechlab to write tons of "invalid matrix!!!" messages. What's
>>> broken?
>>
>> That's a new check I implemented to try to do some basic sanity checking
>> on the matrix being handed to the calculation engine. The calc engine
>> currently bails when it's given a broken matrix.
>>
>> My best advice to you is to strip the circuit down to find the minimal
>> "complete" but illegal circuit and then figure out which components are
>> causing it to break. From there I might be able to help you fix the
>> models for those components.
>
> This is still very easy to reproduce by simply creating a matrix
> display. It will output "Invalid matrix!". And after adding some fixed
> voltages and ground elements it crashes and outputs matrix A. This is
> with the SVN-version.
>
> I've created a bugreport
> https://sourceforge.net/tracker/?func=detail&aid=2862135&group_id=143459&atid=755588
> .
>

  This should change when Eigen will be integrated (hopefully next week).

> Love this program btw :-).
>
> Niels.
>
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