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A black sock with red, yellow, and red arching lines at the top of the sock with a math equation in white on the side of the foot - from 3Blue1Brown.
Blue, red, and yellow arching lines with a math equation below written in white - from 3Blue1Brown.

Fourier Series Socks

By: 3Blue1Brown

Regular price $12.56 Sale

$12.56 = 4π

These socks show various periodic functions, as graphed on a cylinder, the way all periodic functions wish they were graphed.  Specifically, they show the first few Fourier series approximations of a square wave.

Each order comes with one pair of socks.

Size Medium fits women's shoe sizes 6 to 9.5.

Size Large fits men's shoe sizes 8 to 12.5. 

About 60% cotton, 35% nylon, 5% spandex
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