The Leibniz-Newton controversy

Studying the aspects that gave origin to the well known Differential and Integral Calculus right now.

The Royal Society Committee , which analyzed Leibniz plagiarism charges, and the two bands that emerged from it, are really a sign that the human race doesn't change too much through the centuries, and it takes a bit the mystic halo science has, showing that science is also a man business, specially observing Newton's actions, of almost supra human image in the eyes of some, and not really brilliant in the mentioned case.

It also comes as a conclusion that giving the unique authorship of Calculus to one unique person is at least very unfair, seeing the clear traces of preliminary works coming from the Greeks, and there is a list of really big names with fundamental works as Fermat, Descartes, Hooke, etc.

Ruby midi-speech synthesis crossover

Some days ago I had to somehow show all the sound of a .sf2 soundbank file. This can be a really boring and time consuming task.

So I hacked together a ruby script that says the sound number through MS Sapi, and quickly generated a scale midi file with changed instrument, and play it through Windows services, everything from register 1 to 99. It saved me a couple of hours maybe, and was indeed fun.

A little excerpt (recorded from a cheap microphone due to an integrated soundcard's inhability) can be found here

The employed libraries were midilib and win32-sapi .

NumRu, scientific Ruby the easy way

From it's ruby-lang description page:
NumRu is a suite of libraries and applications for numerical modeling, data analysis, and visualization produced by the Dennou Ruby project of the GFD Dennou Club.

It's a complete ruby distribution with many scientific library bindings included. I used it to mockup a new matrix-form daubechies filters mockup I want to implement on a GPU (using brook). The gsl wavelet package had a bug, so I had to use a Debian VM to contrast, but if you want a hole scientific toolbox in a convenient installer, It can be an option.

Brook+ FFT implementation

Starting the work with Brook+, I've found that AFAIK no FFT implementation is publicly available . AMD math libraries are available by request, but it only supports Win64. I'll be reviewing the original Brook FFT implementation and will try to port it to Brook+, given the importance such routines have for every math toolbox.
[Update] replaced with a wavelet GPU library project. I've left it until a GPU Neural Net project for a course is done.

Brook+ and Amd GPU Programming

Beginning some serious GPU programming research, thinking on a long time effort to integrate it in a WaveAtom implementation. Also planning some hybrid CPU-GPU integration research, and afterwards GPU-Multicore nodes clustering. A long way to go here...

The planned Hardware is a ATI HD3450, and the software platform to use is AMD's Brook+. It is a derivative of srteam-computing oriented language Brook , which is converted in c++ kernel code, that is translated into AMD's CAL calls. The original version, Brook, is in version 0,5, and has DirectX, OpenGL, CPU and OpenMP backends.

Mercury is spinning...

More play with OpenGL texturing.

This is mercury spinning on the screen. Using Nehe's tutorial as a base.

Sphere plotter

Experimenting with openGL, I was asked to develop a 4D plotter, where the 4th dimension is given by the diameter of the spheres, which are placed over the 3 other dimensions.

Toyish look, you agree? :-)

Based on NeHe's Tutorials.

Programming on an embedded ARM device.

This is just great. I'll be involved in a C programming project using a Single Board Computer, a TS 7200.

It sports :

• 200 MHz ARM9 processor with MMU
• Boots Linux out of the box
• 32 MB SDRAM
• 8 MB Flash disk (16 MB optional)
• 10/100 Ethernet
• Compact Flash
• 2 USB 2.0 Compatible OHCI ports (12 Mbit/s Max)
• 2 COM ports
• 20 DIO
• PC/104 expansion bus
• Optional A/D and RS-485

Definitively I think it will be a lot of fun programming on it!

[update] Project cancelled, oops!