Stabilité
- bstap — hankel approximant
- dtsi — Continuous time dynamical systems stable anti-stable decomposition
- evans — Evans root locus
- g_margin — gain margin and associated crossover frequency
- p_margin — phase margin and associated crossover frequency
- plzr — pole-zero plot
- routh_t — Routh's table
- sgrid — draws a s-plane grid
- show_margins — display gain and phase margin and associated crossover frequencies
- st_ility — stabilizability test
- zgrid — zgrid plot