Free and Open Source Mathcad Alternative: EngineeringPaper.xyz Tutorial

EngineeringPaper.xyz is a free and open source app for engineering calculations that allows you to create, save, and share your calculations. It automatically checks/converts units, can solve systems of equations, and has an intuitive plotting interface. EngineeringPaper.xyz runs everywhere (Windows, Mac, Linux, Android, and iOS). Looking for a free and open source alternative to Mathcad, look no further!