Hantao Cui

The result looks pretty much like that from PSID but is slightly different in the magnitude: 

Lol, thanks! Good luck with the bug chase! It could be both annoying and fun :) My `master` branch is updated with the fix.

> Exactly. My point was that MATLAB does, and Octave does not ... resulting in speedups for MATLAB and massive slow-downs for Octave with the proposed changes. Thanks for your...

I thought about this again and recalled that PSAT implements a rather compact form for the Jacobians. The derivatives `d S/d V` and `d S/d \theta` are calculated in two...

Hi! Thanks for your reply. From https://github.com/Sinan81/PSAT/blob/b0519c6cf5e87c6cbc5360bcc973a3cfdddcd864/psat-mat/psat/%40LNclass/build_gy.m#L18-L19, I see that the derivatives `dS/dV` and `dS/d\theta` _may_ both have the same structure as Ybus, because multiplying `Ybus` by a full-rank sparse...

> This sounds very similar to what MATPOWER already does. Is it different? I quickly checked your MATPOWER code, and yes, they are indeed quite similar. Using matrix product, the...

> At least for python, the matrix multiplication approach is an order of magnitude slower than the 2-pass algorithm. It is true that scypi's sparse module is notoriously inefficient. For...

Try GNOME desktop. I had this issue with Unity, but switching to GNOME fixes it.

Hello @sanurielf and @rwl , Sorry that I didn't follow up until now because I didn't even make the docker image to build. A lot internals have changed in Pyodide,...

I have the same need for a directional callback. Currently using `ifelse` but thinking a directional callback can be more efficient.