Category Archives: projects

Unbound now supports “set” binders and GADTs

I have just uploaded version 0.3 of the Unbound library (and version 0.5 of RepLib). This version adds support for two major new features: The new permbind and setbind functions create binders that are alpha-equivalent “up to permutation”. For example, … Continue reading

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Good toolchain for writing a user manual?

It’s time to start writing a user manual for diagrams. Haddock documentation is great when you have only, say, forgotten the type of the frobnitz function. However, it is woefully inadequate when you are just trying to figure out how … Continue reading

Posted in projects, writing | 17 Comments

Bit-rotted text adventure EDSL free to a good home

In early 2008 I started working on a Haskell embedded domain-specific language for authoring text adventure games. It didn’t get all that far since I didn’t know a whole lot about either text adventure games or Haskell. But I think … Continue reading

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Tic-tac-toe maps with diagrams

Inspired by Randall Munroe, here are some handy guides to optimal tic-tac-toe play, created with the diagrams EDSL. Click the images to open (zoomable) PDF versions. I hacked this up in just a few hours. How did I do it? … Continue reading

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Announcing diagrams preview release

I am extremely pleased to announce a "developer preview" release of the diagrams framework for declarative drawing. This is a well-thought-out, well-documented, working release with all core functionality in place, but with many planned features still missing (for example, support … Continue reading

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Binders Unbound

Stephanie Weirich, Tim Sheard and I recently submitted a paper to ICFP entitled Binders Unbound. (You can read a draft here.) It’s about our kick-ass, I mean, expressive and flexible library, unbound (note: GHC 7 required), for generically dealing with … Continue reading

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Math.OEIS needs a new maintainer

Summary: the OEIS has switched servers and the oeis package needs updating to match, so I’m looking for someone to take over development. All the rest is padding in the form of entertaining stories. Recently, Michael Snoyman’s wonderful packdeps tool … Continue reading

Posted in haskell, math, projects | Tagged , , , , | 4 Comments