XKCD

...is sometimes funny. And sometimes it is just way cool.

XKCD

...joins the Tautology Club.

XKCD

...explores the limits of logical deduction.

XKCD

An interesting description of the Collatz Conjecture.

xkcd

This one is pretty good, too.

xkcd

As we get ready to begin our discussion of finite probability spaces in 21-270, I think it is apporpriate to think critically about correlation vs. causation.

xkcd

Windows 7

dfield

One of you classmates reminds us that care must be taken when dealing with direction fields

xkcd

Whad would he do?

21-260: xkcd

We won't need to know too much about rotation matrices this semester, but it's nice to know they exist.

xkcd

I wouldn't kid about something like that.

xkcd

What you really need to know about the Riemann zeta function.

xkcd

You just don't say that!

xkcd and set theory

Fetishes