Very impressed with Qucs. Can not get any harmonic balance simulation to work for qucsator.
Have used manually created schematics. RHEL-7.6
Error message is incorrect pivot for LU decomposition.
Does ./configure not check for all required math libraries?
Ran harmonic balance on a diode clipper circuit.
I am having a similar problem when simulating a differential circuit (using the s-parameter file of a balun). I keep getting the following warning: no pivot != 0 found during Crout LU decomposition
As a result, when I try to plot any signal, all the harmonics are null.
If I force it to be single ended (by using one different port at each input) I have no warnings.
Does anyone have any idea on how to solve this?
PS: I'm using the graphical interface, not qucsator.