I think the shininess of the yarn picked up the dark mauve of the blouse I was wearing when I took this picture. It turned a weird color, even with editing. Also, I might do something about the row where I used the wrong increase stitch (distinguishable by the holes - oops). I'm thinking about weaving ribbon through it? But I might just leave it, like an artistic nod to the key-hole that will interrupt it. We'll see.
Turns out, there is an app. It looks pretty slick - you can adjust for in-the-round or straight; increasing or decreasing evenly; and for easier-to-remember or more-accurately-symmetrical. It will even keep track of where you are, and give you the next instruction. It's available for iThings. I'm an Android girl.
The best thing about the website, though, is the list she keeps on the other page. It's a whole list of knitting-related math-doers. Very, very slick indeed.