Blog

Careful when using mutable types as default arguments in Python

So we have this project in Ruby on Rails where we keep track of several reports. Now we need to do some visualizations with all those reports. We analyzed several solutions. One was using Google Fusion Tables but we soon realized it was not an easy...

Partitioned Graph Coloring

Despite being able to simply provide a link to wikipedia’s already excellent article on Linear Programming, I wanted to provide a short introduction in order to present what I am doing exactly on my thesis in a future article. Linear Programming...

Continuing with the tradition started by Beta two years ago here in Manas, I am now dedicating all my efforts to finish my thesis in order to obtain my MSc degree in Computer Science at FCEN-UBA. Having started it a few months ago, Manas generously...

Building an application to track expenses in one hour using GeoChat

Install the RMagick gem in the painless way with Homebrew

Many times we end up having similar tests: same logic but different inputs and expected outputs. For example, suppose we need to test our brand new sqrt function: test "sqrt 1" do assert_equals 1, sqrt(1) end test "sqrt 4" do assert_equals 2,

Deleting children with accepts_nested_attributes_for in Rails

It’s been a while since the last time I wrote something here. I realize I’ve promised several posts which never got written, such as some experiments with bizarre random number generators, the architecture of the silverlight DynamicDeepZoom app we...