![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.](http://store.dftba.com/cdn/shop/products/fourier-socks-1.png?crop=center&height=1260&v=1617918327&width=1060)
![Blue, red, and yellow arching lines with a math equation below written in white - from 3Blue1Brown.](http://store.dftba.com/cdn/shop/products/3blue-socks-2.jpg?crop=center&height=1260&v=1617918327&width=1060)
![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.](http://store.dftba.com/cdn/shop/products/fourier-socks-1.png?crop=center&height=160&v=1617918327&width=160)
![Blue, red, and yellow arching lines with a math equation below written in white - from 3Blue1Brown.](http://store.dftba.com/cdn/shop/products/3blue-socks-2.jpg?crop=center&height=160&v=1617918327&width=160)
Fourier Series Socks
$12.56
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- Description
- Product Info
$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
6 Month Return Policy
Fourier Series Socks
$12.56
![](http://store.dftba.com/cdn/shop/files/3blue1brown-banner-1.png?v=1726092971&width=2600)
ABOUT THE CREATOR
3Blue1Brown
3Blue1Brown, by Grant Sanderson, is some combination of math and entertainment, depending on your disposition. The goal is for explanations to be driven by animations and for difficult problems to be made simple with changes in perspective.
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