# You're reading: Posts Tagged: t-shirt

Because of my statistically improbable stature, it’s really hard to find clothes that fit me. So, most days I wear the lowest common denominator of all clothing styles, a t-shirt. And if I’m wearing a t-shirt, it might as well be Extremely On Brand CP and have some obscure mathematical motif on it.

Good maths t-shirts are hard to come by, so I’ve made four of my own.

I haven’t let lack of illustrating ability get in my way, and I’m quite pleased with how they’ve turned out.

### This matrix joke is only barely worth your time

If you see me doing a maths thing, I’m probably wearing one of my maths t-shirts. I’ve got quite a few, but the one that reliably produces the much-sought-after look of total indifference even once I’ve explained the joke is this one:

It’s a NERD identity matrix, get it?

That t-shirt was made by Festival of the Spoken Nerd, and by the way they’ve recently put together some new designs.

It’s long bothered me that the nerd identity matrix contains so many zeros. It’s also only an identity matrix if $N = E = R = D = 1$. Surely there’s a joke matrix somewhere with a bit more meat to it?