SketchUp Make - SketchUp Make is a best in the class CAD software capable of performing 2D and 3D rendering and designing, however, best for the 2D projects.
Autodesk Fusion 360 - Integrated CAD, CAM, and CAE featuring collaborative editing and cloud-based computation.
FreeCAD - An open-source parametric 3D modeler
Inventor - Inventor is a 3D CAD software that lets you quickly create 3D models with embedded intelligence, intuitive workflows, and optimized performance.
OpenSCAD - OpenSCAD is a software for creating solid 3D CAD objects.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming