todo

connect to github repo


SHORT TERM
apply jade to lay out the main file
triangle directive
install mathjax


FIFTH PLOT
should explained y vs dy idea


CART
-make directive
-build cart graphic
-make it roll

MED TERM
axis labels

make a mathJAX directive and use it to place text by using the getBoundingClientRect of whatever you're pointing at (or use getBBox)

http://blog.datacamp.com/mathjax-binding-in-angular-js/

LONG TERM
fix whatever it is wrong with the line being drawn
mathjax
make a zoom on the equation plots
rescaling
drop shadows
use scope.$destroy when one of the dots gets killed off