Comments
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15th Mar 2013 at 10:46am
Squares: A very ugly hat, a Klein Bottle hat stripes corresponding to the digits of Pi, for the maths geek son of an acquaintance... -
15th Mar 2013 at 1:00pm
Squares: Yes I posted it on the knitting thread... Mat Parker Klein Bottle hat should find it in Google x -
15th Mar 2013 at 10:08pm
Hanneke: standupmaths.com -
15th Mar 2013 at 10:35pm
Squares: Thanks Hanneke, I added a couple of extra increases to each section of the main body of the hat... maths nerd have big heads apparently -
18th Mar 2013 at 10:28am
Tigerlily: United colours, I'd wear it 😀