MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
Modelio - Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
AnyLogic - AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.
UML Designer - UML Designer provides a set of common diagrams to work with UML 2.5 models.