Monthly Archives: July 2009

Primitive species and species operations, part II

In my previous post, I began describing the primitive species and species operations supported by my combinatorial species library; we looked at the ring structure on species, that is, the primitive species and , and the operations of species sum … Continue reading

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Primitive species and species operations

In this second post about my new combinatorial species library, I plan to begin writing about the species DSL itself: what are the primitive combinatorial species and the primitive operations on species? (The first post described the concept of combinatorial … Continue reading

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Hac φ roundup

By all accounts, Hac φ was a great success! 25 people attended (from as far away as Chicago, Toronto, and Utrecht) and we had a great time hanging out, eating good food, listening to some interesting talks, and, oh yes, … Continue reading

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More from Hac φ

Yet more pictures from Hac φ! This afternoon we were treated to talks by Dimitry Golubovsky (typed JavaScript generation), Edward Kmett (monoids library and monoidal parsing), Gershom Bazerman (DSL and quasiquoting for JavaScript generation), and Anton van Straaten (Gitit as … Continue reading

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Hac φ day 2

A few pictures from Day 2 of Hac φ:

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Introducing Math.Combinatorics.Species!

I have just uploaded to Hackage version 0.1 of the species package, a Haskell library for computing with combinatorial species. Much like David Amos’s great series of posts introducing his Haskell for Maths library, I plan to write a series … Continue reading

Posted in combinatorics, haskell, math, projects | Tagged , | 14 Comments

Hac φ is underway!

Hac φ is now in full swing, with almost 20 people hacking away and more coming tomorrow. More news and pictures to come!

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