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Why The Complete Bipartite Graph K3,3 Is Not Planar
The graphs $$K_5$$ and $$K_{3,3}$$ are two of the most important graphs within the subject of planarity in graph theory. Kuratowski’s theorem tells us that, if we can find a subgraph in any graph that...
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Scala First Impressions
A few months ago, my co-workers and I converted a central part of our codebase from Java and Groovy into Scala. Though I am, by no means, a Scala expert at this point, I wanted to share some of my...
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Computer Science and Telescopes
Whenever there is a discussion about what Computer Science is and what it is not, it is a near-certainty that a particular quote will soon be used. Computer science is no more about computers than...
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Need-Driven Development
I love Test-Driven Development, but I’ve found that there are a number of different ways people actually do TDD in real-world projects. Over time, I have discovered that I have a particular way of...
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Traveling Salesperson: The Most Misunderstood Problem
Whenever people start talking about NP-Complete problems, or even NP problems, one of the first examples they reach for is the classic Traveling Salesperson Problem. TSP makes sense because it...
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Getting “Real Work” Done
There are a lot of things that annoy me in my industry: lack of commitment to writing quality code, no discipline regarding tests, and many, many more. These things irritate me, and I see them all the...
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Book Review: The Career Programmer
I recently read a book called The Career Programmer by Christopher Duncan. I typically don’t post book reviews unless I really love a book and want to spread the word, but in this case I felt compelled...
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Scala Second Impressions
In December, I posted about my early thoughts on Scala after using it for a short time. Initially, I thought that using Scala didn’t buy very much – the functional style could be adopted in in Java,...
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A Stroll Through the Complexity Zoo
This Fall, I took a course on Computational Complexity. I’ve been exposed to complexity in Computer Science before, but as an undergrad it rarely went beyond discussing P, NP, and NP-Complete. While I...
View ArticleBrief Thoughts on Software Craftsmanship
To catch people up on some blogosphere drama: Last month, Heather Arthur posted on her blog about an unfortunate incident in which some people on Twitter had found some code she wrote in GitHub, and...
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OSCON 2013: A Review
This year, I went to O’Reilly’s Open Source Convention, OSCON. Every year for the last four years, I’ve gone to a big tech conference. For the last three, I went to NoFluffJustStuff, which was later...
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Diving Into Android
I’ve finally written my first real Android app. I dabbled a bit with Android development in the very early days, writing an app that interacted with the web services of the company I was working for at...
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Top 10 Career-Changing Programming Books
When I graduated with a Computer Science degree ten years ago, I was excited to dive into the world of professional programming. I had done well in school, and I thought I was completely ready to be...
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