Archives for February 2007

feedback

The graffiti research lab strikes again! And gets me thinking about I/O.
Their project is essentially taking a camera and watching the screen so that they can react to changes. This idea of feedback is pretty powerful. Computers already have both microphones and speakers, but they need cameras to go with their monitors [...]

Solving Cryptarithms

SEND + MORE = MONEY
MOSCOW = RED ** 2
ONE + TWO + TWO + THREE + THREE = ELEVEN
COUPLE + COUPLE = QUARTET
Each of these can be turned into a valid arithmetic expression by figuring out a mapping from the letter of the words to the digits 0-9. Remember that 0 can’t start a [...]

autolink

I made a WordPress plugin! Coding in PHP is like taking all the string munging power of C with all the speed of Python and the elegance of shell. Nevertheless, I wrote a plugin that, whenever the title of an already-written post appears, will replace it with a link to that post. [...]