Best Free Vector Based Programs

AutoCAD Tutorial for Beginners - 1

PCB Design Tutorial 01 for Beginners - Getting Started (Altium)

AutoCAD Mechanical Tutorial for Beginners - 1

Divergence and Curl (Vector Fields)

Gradient, Divergence, and Curl Explained: Essential Vector Calculus

Div, Grad, and Curl: Vector Calculus Building Blocks for PDEs [Divergence, Gradient, and Curl]