Links

Physics and Math

  • The Feynman Lectures on Physics: Now, anyone with internet access and a web browser can enjoy reading a high quality up-to-date copy of Feynman's legendary lectures.
  • 3Blue1Brown: is some combination of math and entertainment, depending on your disposition.
  • Minute Physics: simply put: cool physics and other sweet science.
  • HyperPhysics: is an educational website about physics topics.
  • MathInsight: this web site contains both narrative pages and interactive applets focusing on the concepts underlying a few topics in mathematics.
  • Physics with Elliot: intermediate level videos explaining a range of physics topics.
  • Mathologer: Enter the world of the Mathologer for really accessible explanations of hard and beautiful math(s)
  • Mathacy: Math concepts explained by visualization
  • Kathy Loves Physics & History: documentary videos based on the history of science and the importance of context for learning science.
  • Desmos: advanced graphing calculator implemented as a web application.
  • Derivative and Integral Online Calculator
  • Hackmath - Complex Number Calculator: This calculator does basic arithmetic on complex numbers and evaluates expressions in the set of complex numbers. It also converts a complex number into angle notation (phasor notation), exponential, or polar coordinates (magnitude and angle).
  • GeoGebra: Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more.
  • StoryofMathematics: Mathematics tells a story that so few other things can tell – you can clearly trace its history throughout different civilizations, major world events, progress, war, and more. It is technical, artistic, challenging, and comforting to so many. The Story of Mathematics is the story of the world.

Probability and Statistics

  • StatQuest: StatQuest is a collection of videos to explain statistics stripping away the terminology and communicate the concepts using pictures.
  • DATAtab: tutorials and "how to use" videos
  • Orange: Open source machine learning and data visualization. YouTube Channel

Machine Learning

Circuits Simulators

  • LTSpice: high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
  • Falstad: is an electronic circuit simulator.
  • Multisim: is an electronic schematic capture and simulation program.
  • EveryCircuit: easy to use, highly interactive circuit simulator and schematic capture tool.
  • LogiSim: is an educational tool for designing and simulating digital logic circuits.
  • Elliott Sound Product: DIY audio and electronics articles (not a simulator)

Online Courses

  • Real Analog: is a comprehensive collection of free educational materials that seamlessly blend hands-on design projects with theoretical concepts and circuit analysis techniques.
  • Engineering University Program: Analog Devices is as passionate about educating the next generation of young circuit design engineers as it is about pioneering the next technological breakthroughs. The University Program is a platform where Analog Devices, working with leading educational institutions has created and deployed new hands on learning tools for the next generation of design engineers. 
  • PredictableDesigns: Helping entrepreneurs, startups, makers, inventors, & small companies develop electronic hardware products in a predictable fashion is our goal.

Programming Languages

  • OnlineGDB: Online compiler and debugger for C/C++ (Free)
  • RepLit: Python online compiler (Free)
  • MatLab OnRamp: quickly learn the essentials of MATLAB.
  • Simulink OnRamp: learn to create, edit, and troubleshoot Simulink models.
  • Octave: is a free software featuring a high-level programming language, primarily intended for numerical computations, using a language that is mostly compatible with MATLAB
  • Octave Online: is the web UI for GNU Octave
  • W3Schools: is an educational website for learning web technologies online.
  • TutorialsPoint: online free tutorials library.
  • Mathcad: math software that lets you perform, analyze, document and share your calculations easily.

PCB Design

  • KiCad: A Cross Platform and Open Source Electronics Design Automation Suite.
  • KiCanvas: is an interactive, browser-based viewer for KiCad schematics and boards.

3D CAD Design

  • Autodesk Fusion 360: platform for 3D CAD, modeling, manufacturing, industrial design, electronics and mechanical engineering.
  • FreeCAD: open source parametric 3D modeler.
  • MeshLab: open source system for processing and editing 3D triangular meshes.
  • Onshape: computer-aided design software over the web browser.

VLSI Design

  • Electric: computer-aided design system for electrical circuits. It is primarily intended for integrated-circuit layout, but it also handles schematics and even textual hardware description languages [Open Source]
  • Microwind: is truly integrated EDA software encompassing IC designs from concept to completion, enabling chip designers to design beyond their imagination [License Needed]

Controls

  • EngineeringMedia: focus on making complex ideas intuitive and easy to understand in the area of Control Theory

Digital Signals and Communications

  • GNURadio: a free and open source radio ecosystem.
  • Akash Murthy: a YouTube channel dedicated to audio technology, production and programming.
  • MicroModeler: is a web-based DSP IDE. You can design and code high performance, reliable digital filters and a great way to learn about filter design and DSP concepts. (Free Version Available)
  • ASN Filter Designer: is a powerful real-time DSP experimentation platform.

Antennas

  • MMANA-GAL: is an antenna-analyzing tool (free version available)
  • Smith: Smith-Chart Software

Document Editors

Research Tips

Editing Tools

Others

  • The Dangers of Short Form Content (Article)