MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
draw.io - Online diagramming application
GNU Octave - GNU Octave is a programming language for scientific computing.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Scilab - Scilab Official Website. Enter your search in the box aboveAbout ScilabScilab is free and open source software for numerical . Thanks for downloading Scilab!
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.