Fredrik Bagge Carlson

pass through kwargs to norm calculations

5

`hinfnorm` fails to converge quite often and requires argument tuning, this PR allows you to set those arguments

add interface to dsp

1

needs more tests

More LQG updates

3

This PR adds tests for LQG and makes sure it conforms to Glad Ljung

These two functions work well when only a single system is plotted. When plotting two systems in the same plot, the ticks are chosen based on the last system only,...

Use of promote_op problematic

3

See discussion in https://github.com/JuliaLang/julia/issues/38436#issuecomment-730200157 We should try to rid ourselves of the use of `promote_op` to avoid future situations like this.

```julia a = 1 s = zpk("s") base = ss((a-s)/(a+s)) Qq = [ss(1.);base;[balreal(base^k)[1] for k = 2:10-1]] # Does not work Qq = [ss(1.);base;[balreal(base^k)[1] for k = 2:10-1]...] # Works...

Polynomials with very small coefficients gets rounded to 0

1

Background: https://discourse.julialang.org/t/trouble-with-controlsystems-jl/8783/7 Constructor of `Poly` checks absolute magnitude of coeffs and rounds down if `< 2eps()`. This threshold should be a variable such that `tf` constructor can set it in...

Function tf and ss

2

In julia, constructors are used to construct types and types and constructors share name. `convert` is used to convert an instance of one type to another type. In `ControlSystems/autodiff` we...

In Jupyter and Juno we can display systems in a prettier way than we are currently doing. Instructions on displaying LaTeX is given here http://docs.junolab.org/latest/man/info_developer.html Essentially, one has to define...