On the topic of how we do our thinking/wire-framing/documentation, in a wonderful thread in Leisa Reichelt’s blog….
Also here in a thread on UML vs Nothing and a post from Melissa Firth‘s shiny fresh new blog that mentions UML being used to outline the narrative of a novel and it seems that 37 Signals prefer Textas.
Personally I prefer a 4 colour Bic Pen. I have two of them and at least two notebooks in my bag at all times.
I don’t need a computer to program. I do a lot of it visually (in my head) and model algorithms with geometry/diagrams.
As I flick through my notebook and view the scribblings within, I am, for some reason, reminded of Aleister Crowley. 1 2 3
I provide the following images for you to judge for yourselves. (Click to view large version)
James McParlane's Blog 
Ooooh, let me guess…
1.) Your differentiating something, matricies, dy, dx, but i don’t know what.
2.) FSA (Finite State Automata), for sure, but i can’t see the image becase you linked the wrong one.
3.) Definately FSA still, regular expressions, thompsons construction. Your working on the one step transformation from a NFA to a DFA 🙂
How’d i do ?
1) Close enough
2) Wrong (link fixed)
3) FSA, but not Thompson