jamestjsp

Delay system in feedback path throws a method error

2

The following code throws a method error. This can be easily reproduced by placing a delay system in the denominator of any expression. ``` s = tf("s") L = 5;...

The x label 'Time' and y label 'Amplitude' are being pushed outside the canvas while plotting using `step_response_plot` from IDLE. But looks fine in Jupyter notebook.

Sum of Transfer results a ValueError: Noncausal transfer functions are not allowed.

1

Sum of multiple higher order transferfunction results in a 'ValueError: Noncausal transfer functions are not allowed.' I have written PolyFrac class and do arithmetic then convert to Transfer object works...

NF01BS DLACPY Overlapping Memory Bug

3

## Summary The SLICOT routine `NF01BS` (QR factorization of Jacobian in compressed form) contains a bug where `DLACPY` is called with overlapping source and destination memory regions. This is undefined...

Bug in SB02RU (Discrete-time, HINV='I')

1

## Description There is a bug in the `SB02RU` subroutine in `src/SB02RU.f` which affects the construction of the symplectic matrix for discrete-time Riccati equations when `HINV='I'` (inverse symplectic matrix). In...