Block diagrams can be written, usually in boxes, with the headings input, process, and output. When planning how a circuit will function, these headings are then used to plan what the input ...

Left: Initial temperature and density setup, which mirrors conditions of the stable and isobaric burning process. Middle: the ion scattering trajectories for large or small angles, and the ...

it’s great for a quick-and-dirty circuit diagrams. Not exactly schematics, but [Duckman] has some Arduino pinout diagrams he made using ASCII-art. These could be useful when pasted into source ...