MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
GNU Octave - GNU Octave is a programming language for scientific computing.
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.
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.
SimScale - SimScale makes high-fidelity engineering simulation truly accessible. From anywhere. At any scale. In the cloud.