March 2008
3 posts
Rounding errors in practice
In college I followed a course in numerical analysis. The main point of the course was to be careful with floating point arithmetic, because it is vulnerable to rounding errors that can significantly influence the result of complex computations. Until yesterday I never had encountered such a problem. Now that I have lost my innocence in this matter, I would like to share my tale of nasty debugging...
Encoding UTF-8 in Javascript
I had to make a call from Javascript to a SOAP web service (more on that later). The data I had to send to the web service was in a XML format that contained non ASCII characters (for example: é). I tried to use the standard escape() function, but that one couldn’t handle the special characters.
Thanks to ecmanaut I found a very simple solution: encodeURIComponent() (with...
Putting HTTP status codes to use with Rails
Note: I have released a Rails plugin that creates an exception class for every HTTP status to your Rails application and adds a default handler for these exceptions, based on the examples in this post.
We are currently implementing an API for Floorplanner, so other sites can use the service Floorplanner offers for their own needs. The Floorplanner website is developed with Rails, so we are...
