FilipiVianna

A friend of mine told me about this http://www.marketiva.com , a web site for trading of finantial instruments. I didn't read all the docs yet. Their client tools runs only on windows - bad start :-( The "about" section of their home page says: "Marketiva is a financial services corporation specialized in providing traders with high quality online trading services. With a team of dedicated financial specialists and technical support personnel, Marketiva operates globally as a market maker and principal counterparty to retail traders. ... ." My friend told me this marketiva gives the investor 5 dollars to start, closes your position automatically if you loose more then 1%. There are other sites for trading financial instruments, like http://forex.com , but as he says, marketiva is a good to start because it is the one who protects most the investors. The others, as he said, are "spanking cats" ;-)

This morning on the animation class I am taking at grad school, a colleague had shown a paper review on " As-Rigid-As-Possible Shape Manipulation " [1]. I've found that is awesome... There are many applications for this new approach on shape manipulation. There must be someone to write a inkscape extension using this technique. [1] Takeo Igarashi, Tomer Moscovich, John F. Hughes, "A s-Rigid-As-Possible Shape Manipulation ", ACM Transactions on Computer Graphics, Vol.24, No.3, ACM SIGGRAPH 2005, Los Angels, USA, 2005. PDF

I was googling around for some code to use on my next work for the visualization class at grad school, and I found this interesting code. http://www.geocities.com/harpin_floh/glglobe_page. html The web site says it could not compile on my machine, but it did! The code is not too much complex and this could be used in a variety of ways. Here is what I've got:

I was looking for some documentation on DX (Data Explorer from IBM), now OpenDX, which is a data visualization tool similar to AVS. But I have found this material: http://www.research.ibm.com/ dx/bonuspak/html/bonuspak301. html Which, I suspect, is a tool which converts AVS .net files to be used as DX net files. I haven't tested yet, but it looks promising...

I was playing around with GNU R for distribution fitting last year for my undergraduate conclusion work, and certanly it is the best free software tool for a lot of statistical problems. GNU R tutorial at Illinois State University http://www.math.ilstu.edu/dhkim/Rstuff/Rtutor.html

Here are a couple of links listing some big and reliable projects using PHP, like Mediawiki (Wikipedia), Facebok and Wordpress. PHP-based CMS apps that changed the world Open-source PHP applications that changed the world What Should a Web Site Cost?

Slashdot came with an article which links to an QCon talk describing h ow Facebook use and optimize its Lamp infrastructure .

A friend of mine came to me asking for a simple way to convert the charset encoding of a bunch o LaTeX files. He had all his files in the UFT-8 encoding and he wanted to convert all of them to "latin-1" (ISO-8859-1). So, I saved all the files he sent me in the same folder, opened a terminal shell window and typed the following command line: ls -1 *.tex | while read line ; do iconv -f utf-8 -t iso-8859-1 $line -o "latin1_"$line; done And voilà , they were now encoded with ISO-8859-1.

Note to check out how to deform a surface using OpenGL http://ivanleben.blogspot.com/2008/03/water-reflections-with-opengl.html http://www.darwin3d.com/gdm1998.htm http://developer.nvidia.com/object/cube_map_ogl_tutorial.html http://people.sc.fsu.edu/~blanco/Cg/Cg_projects.htm http://herakles.zcu.cz/~miva/index.php?prom=projects&lang=en http://www.opengl.org/news/monthly_archives/2005/09 And an interesting tutorial on rope simulation at gamedev.ne t.

I was needing to link a fortran lib with one C program I was writing. I found this interesting tutorial: http://www.yolinux.com/TUTORIALS/LinuxTutorialMixingFortranAndC.html I hope to put some demonstration here soon.

Note to learn how to use wxWidgets: http://zetcode.com/tutorials/wxwidgetstutorial/thetetrisgame/ http://www.vconrado.com/wx/ http://wiki.wxwidgets.org/Makefile On windows (and on wine ;-) we can use wxDev-C++ On Ubuntu, install the libwxgtk2.8-dev deb.