A simple math expression calculator in ocaml

Submitted by fabio on Sun, 2007-05-13 14:29. I’m studying for the course of “Programming Paradigm” (traslation of Paradigmi di Programmazione) where we study different programming approaches by using some new programming languages. The first programming language we are using is ocaml, a functional programming oriented language (for more informations read the ocaml Wikipedia page). As first exercise

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Thunderbird: Sort / Rearrange accounts and define a startup folder using the Folderpane Tools Extension

I use Thunderbird as my email client. I’m very satisfied with it: I spend a considerable amount of time writing/reading emails and Thunderbird has always been a wonderful tool for this. Two features I always missed from Thunderbird were the ability to sort the different accounts on my profile to my taste and defining a default start up

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Visiting Fablab Italia

I recently had the opportunity to visit Fablab Italia, the fablab that has been established as part of the Stazione Futuro exhibition. A Fab Lab (fabrication laboratory) is a small-scale workshop offering digital fabrication. Fablab Italia offers many useful tools to create your own project. Fablab Italia offers: a Makerbot Thing-O-Matic 3D printer a Z-corp professional 3D printer a Roland MDX-40A professional milling machine a

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MS5611-01BA Arduino library: first developments results

I spent the last days working on the MS5611-01BA high resolution pressure sensor. I wrote an Arduino library for it which you can find on my bzr repository: browse repository download library use bzr co http://repository.varesano.net/MS561101BA/ to get a copy directly using bzr. the MS5611 library is now part of the FreeIMU library. Please refer to the FreeIMU library for

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Quaternion representation of the rotation of a sphere into plane displacement

This is a mathematical problem I’m facing these days.. here you go. I do have a sphere of known radius which does have a coordinate frame rigidly attached to it. Let’s call the coordinate frame attached to the sphere XYZs. The sphere can be rotated and displaced arbitrarily with respect to a fixed coordinate frame

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