Examples

Simple tests

Different arrow types:

Boxes and shapes:

Flow chart

UML

No not really, yet. But you get the idea.

Electronics

It would be cool if it could display simple schematics.

• Capacitor not good, would prefer --||-- -> symbol detection

• Diodes OK
• Caps not optimal. Too far apart in image, not very good recognisable in ASCII. Space cannot be removed as the two + signs would be connected otherwise. The schematic below uses an other style.
• Arrows in transistor symbols can not be drawn

Here is a complete circuit with different parts:

Timing diagrams

Here is one with descriptions:

Statistical diagrams

Benfords distribution of the sizes of files on my hard drive:

Just some bars:

Schedules