This addon is available in Godot Asset Library and thus can be installed using editor's built-in addon manager. Alternatievely, you can download an archive from releases page or from current branch.

this issue was identified in #42080. Effectively the problem is that some packages require the presence of portaudio.h registered on the machine to be able to test successfully.

Abstract: The aim of this article is to establish generic stability conditions for switched nonlinear systems with mode-dependent average dwell-time (MDADT) switching rules via Takagi–Sugeno (T–S) ...