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By George Hart for the Museum of Mathematics

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A mathematical haircut makes an unambiguous statement to the world that you love math. Here, Nick Sayers is sporting a rhombic coiffure with interesting geometric properties.

The obtuse angles of each rhombus meet in groups of three, but the acute angles meet in groups of five, six, or seven, depending on the curvature. In the flatter areas, they meet in groups of six, like equilateral triangles, and in the areas of strong positive curvature they meet in groups of five, but in the negatively curved saddle at the back of the neck, there is a group of seven.

To make your own, Nick suggests you use a rhombic paper template starting at the crown, work outwards, and make aesthetic decisions about the 5-, 6-, or 7-way joints depending on local curvature. This instance of the design was cut by Hannah Barker after a test version a couple of months earlier by Summer Makepeace.

Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor for Boing Boing and WINK Books. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.


5 Responses to Math Monday: Make a Mathematical Haircut

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  1. Anonymous on said:

    My math students are really getting a kick out of this.  This is against dress code, but still fun!

  2. Anonymous on said:

    My students are loving this even though it is against dress-code!  I still HAD to show them.  I just know one of them will try it one weekend!!!!

  3. Anonymous on said:

    Very Mathematical indeed. I wonder how long it takes to get this. Also check out trendy hairstyles. btw, i’ve bookmarked and shared this article.

  4. Frank Wick on said:

    Qbert?

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