Monthly Archives: January 2008

Not just a normal variable. I’m special!

In my list of Common Lisp notes, I wanted to get on to handler-case and handler-bind,  but I think before I do that I ought to try to explain a little about special variables.   Normal variables in Lisp are … Continue reading

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How did he do that?

I just finished the 800 pages that is Joe Celko’s SQL for Smarties: Advanced SQL Programming   This book is basically a massive set of examples of SQL solutions to a variety of problems. The text is divided into sections covering various … Continue reading

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Yes please, I’d like a game

Ever since we bought a Nintendo DS, my son has been keen on writing a game for it. As a means of getting into writing such games, I set myself a target of writing something simple which would: Demonstrate some … Continue reading

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Please, let me continue!

I got interested again in continuations when we got a stack overflow in an algorithm at a customer site. The algorithm used recursion to neatly express what it was doing, but it was being applied to a dataset that caused … Continue reading

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I’m not complex, I’m linear

My son got some homework from school connected to common multiples of two integers. For a while I couldn’t remember what this meant – until I remembered the least common multiple. This made me remember the rather clever proof using … Continue reading

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The Haskell School Of Expression by Paul Hudak

The Haskell School of Expression is an introduction to the Haskell programming language. This was by far the best programming language tutorial that I have ever read.   Using an application for drawing and calculating data about shapes, the book shows … Continue reading

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Beautiful code Edited by Andy Oram and Greg WIlson

Beautiful Code is a spectacularly good series of 33 essays on various problems in computing that were solved, in the opinion of the individual authors, in a beautiful manner. The subject areas of the essays go from bit twiddling implementations that count the … Continue reading

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