Mathematical Pumpkins
Thursday, 29 October 2009
Over the past few years, Pumpkin carving in my family has somehow ended up focusing on two themes: Math, and Knitting.
A Sierpinski Triangle — which surprisingly only took a toothpick or two to repair isolated triangles:
Sierpinski Carpet (along with a wee bit of evil, of course:)
Not being one to cut 64 of the level-three squares by hand, a cordless drill came in extremely handy.
Mandelbrot, and Koch snowflake:
Knitting randoms:
And just a cool cat in a window:
Unfortunately, when I’m out trick-or-treating, there’s nobody around to give candy to the little monsters. I leave a note above a bowl on a chair – and now I finally know why my calligraphy pens include red in the set!
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No. 1 — November 4th, 2009 at 6:26 pm
Ok, unrelated to Halloween, but could you explain the V2 behavior that $$ doesn’t appear to work when it’s something that was "var-like"?
PS C:\> cd $env:temp
PS C:\Users\james\AppData\Local\Temp> cd $$
Set-Location : Cannot find path ‘env:temp’ because it does not exist.
At line:1 char:3
+ cd <<<< $$
+ CategoryInfo : ObjectNotFound: (env:temp:String) [Set-Location], ItemNotFoundException
+ FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.SetLocationCommand
PS C:\Users\james\AppData\Local\Temp>