13 Trig Functions You Need to Memorize Right Now

Co-cocoasine and cocoa-cosine are totally different. Naturally.

The Exponential Bait and Switch

Halfway through, the idea of “exponent” takes a sudden turn. And—fair warning—so does this post.

a series of 17-syllable definitions, for people who probably already know what the words mean

I could easily spin out 800 words bagging on this poor sign-maker. But instead, I want to argue the opposite.

My chairman was indignant. “How can they all be A’s?” he asked. “Is this some kind of joke?”

A dispatch from the trenches of the "math wars."

Next, my brain exploded and the universe dissolved around me, because I had just punched logic in the face.

The secret to the cartoon: almost ALL numbers have 9's in them.

When you see algebraic rules as merely about moving x's and y's around a page, it's easy to fall prey to systematic errors.

Infinity shreds our intuitions.