The Monad.Reader

Binding your input since 2005

Archive for the ‘Issues’ Category

Mini-issue 24: Predicates, Trees and GADTs

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I am pleased to announce that Mini-issue 24 of The Monad Reader is now available. It is a “mini-issue” because it consists of one article: “Predicates, Trees and GADTs” by Benjamin Hodgson.

Feel free to browse the source files. You can check out the entire repository using Git:

git clone https://github.com/ezyang/tmr-issue24.git

If you’d like to write something for The Monad Reader, please get in touch!

Written by ezyang

August 19, 2015 at 5:21 pm

Posted in Issues

Issue 23

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I am pleased to announce that Issue 23 of the Monad Reader is now available.

Issue 23 consists of the following five articles:

This time around, I have individual article files for each (and the supercompilation article has an extra appendix not included in the full issue PDF).

Feel free to browse the source files. You can check out the entire repository using Git:

git clone https://github.com/ezyang/tmr-issue23.git

If you’d like to write something for Issue 24, please get in touch!

 

Written by ezyang

April 23, 2014 at 11:59 pm

Posted in Issues

Issue 22

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I am pleased to announce that Issue 22 of The Monad Reader is now available.

Issue 22 consists of the following three articles:

  • Generalized Algebraic Data Types in Haskell by Anton Dergunov
  • Error Reporting Parsers: a Monad Transformer Approach by Matt Fenwick and Jay Vyas
  • Two Monoids for Approximating NP-Complete Problems by Mike Izbicki

Feel free to browse the source files. You can check out the entire repository using Git:

git clone https://github.com/ezyang/tmr-issue22.git

If you’d like to write something for Issue 23, please get in touch!

Errata. Unfortunately there were several mistakes in the “Generalized Algebraic Data Types in Haskell” tutorial article which were recently fixed (many thanks to Shachaf Ben-Kiki and vituscze for pointing them out):

1. On page 9 of the article “error” function was used in “evaluate”
function, but in this context “fail” is cleaner.

2. On page 22 there was a typo: shortest paths are those “containing only *red* nodes”.

3. On page 24 we presented two alternative ways to define “Tree” data type: via GADTs and existential types. The latter definition contained an error. Correct definition is:

data Tree a = forall bh. Root (Node a bh)

Written by ezyang

August 6, 2013 at 10:31 pm

Posted in Issues

Issue 21

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I am pleased to announce that Issue 21 of The Monad Reader is now available.

Issue 21 consists of the following two articles:

  • A Functional Approach to Neural Networks by Amy de Buitléir, Michael Russell, Mark Daly
  • Haskell ab initio: the Hartree-Fock Method in Haskell by Felipe Zapata, Angel J. Alvarez

Feel free to browse the source files. You can check out the entire repository using Git:

git clone https://github.com/ezyang/tmr-issue21.git

If you’d like to write something for Issue 22, please get in touch!

Written by ezyang

March 16, 2013 at 5:08 am

Posted in Issues

Issue 20

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It’s not dead, it’s resting! I am pleased to announce that Issue 20 of the Monad Reader is now available.

Issue 20 consists of the following three articles:

  • Enumeration of Tuples with Hyperplanes by Tillmann Vogt
  • Understanding Basic Haskell Error Messages by Jan Stolarek
  • The MapReduce type of a Monad by Julian Porter

Feel free to browse the source files. You can check out the entire repository using Git:

git clone https://github.com/ezyang/tmr-issue20.git

If you’d like to write something for Issue 21, please get in touch!

Written by ezyang

August 25, 2012 at 11:29 pm

Issue 19

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I am pleased to announce that Issue 19 of The Monad.Reader, a special issue on parallelism and concurrency, is now available.

Issue 19 consists of the following three articles:

  • Mighttpd – a High Performance Web Server in Haskell by Kazu Yamamoto
  • High Performance Haskell with MPI by Bernie Pope and Dmitry Astapov
  • Coroutine Pipelines by Mario Blažević

Feel free to browse the source files. You can check out the entire repository using darcs:

darcs get http://code.haskell.org/~byorgey/TMR/Issue19

If you’d like to write something for Issue 20, please get in touch. The deadline will likely be in December; more details will be forthcoming.

Written by Brent

October 26, 2011 at 3:17 pm

Issue 18

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I am pleased to announce that Issue 18 of The Monad.Reader is now available.

Issue 18 consists of the following three articles:

  • MapReduce as a Monad by Julian Porter
  • Fun with Parallel Monad Comprehensions by Tomas Petricek
  • Attributed Variables: Their Uses and One Implementation by Douglas M. Auclair

Feel free to browse the source files. You can check out the entire repository using darcs (or simply visit the below URL in your browser):

darcs get http://code.haskell.org/~byorgey/TMR/Issue18

Enjoy!

Written by Brent

July 5, 2011 at 3:43 pm