Articles

Efficient filtering of polygonal shapes with closed-form solutions based on Green's theorem with piecewise-polynomial filters (e.g. box/bilinear/bicubic).

An opinionated guide on new techniques and strategies for solving Slitherlink puzzles, with a web app to play with the concepts and a library of patterns.

Using edge cases in Canvas implementations, it is possible to create images that are different on different browsers, without querying the browser. This can be used to create browser-specific content.

Currently, there are a number of HTML5 Canvas edge cases that display differently on different browsers. This is a list of all quirks that I've come across so far in Scenery development.

How can we choose a subset of $\{1,\ldots,n\}$ with as many elements as possible such that the sum of any two elements is distinct?

Imagine a magical landscape where everywhere you go, the average elevation within 1km is always the same. Is there any way this landscape can have hills?