Falk Lieder

It would be good to have a cell-like stylesheet=stylesheet so that others can re-import it.
You could also call the stylesheet here if you want to use it and style the cells below!

Sam Nolan

There's a bit of duplication here with the core library:

sum_list doesn't exist in core (annoyingly, I want to add that at some point)
sqrt exists as Math.sqrt (undocumented, I've just realised)
normal_from_mean_and_sd(x, y) exists as lognormal({mean: x, stdev: y})
mean and stdev of lognormal dist can be gotten through mean(lognormal()) and stdev(lognormal()) [I think the latter is somewhat new]