Stone Studio

Norman Ramsey at StackOverflow once asked: My group uses Literate Programming for most of our source code—this means that internal documentation is written using LaTeX. We have been using PStricks for fancy technical diagrams of the system, but have recently been recommended to use TikZ. I’ve gathered this information: TikZ/PGF is new and maintained; PStricks went [...]

Linear programming is often a favorite topic for both professors and students. The ability to introduce LP using a graphical approach, the relative ease of the solution method, the widespread availability of LP software packages, and the wide range of applications make LP accessible even to students with relatively weak mathematical backgrounds. Additionally, LP provides [...]

Free file browser Q-Dir makes for a good USB drive app or installed replacement for Windows Explorer for those who do a serious amount of file swapping, or just like to be able to keep multiple folder views open at once. The app—which installs by default, but can run by itself after renaming it “Q-Dir.exe”—offers [...]

Ipe extensible drawing editor is a free vector graphics editor for creating figures in PDF or EPS format. It can be used for making small figures for inclusion into LaTeX documents as well as making multi-page PDF presentations. It was developed by Otfried Cheong in 1993 and initially worked on SGI workstations only. Ipe 6 [...]

Have you find upload file using your FTP client extremely slow? Do you interested to use FTP command line instead? Useful to impress girls with CLI skills :p. This is a visual guide of how to do just about that. Here is the scenario, I would like to upload a file C:\Users\Dean\Desktop\temp\Nelson2002.pdf.

Data-Based Video Manipulation. How fall of stocks changes expression. Experiment in visualizing data the josef ackermann statement is pitched in relation to the share price value of deutsche bank. Build with processing, data is read from a share price chart image taken from the web.

I was reading this blog post on Revolutions Computing’s blog and discovered the vcasmo service, a way to post a presentation or video with the slides right next to it. This is DEFINITELY something I will use. Often times I watch talks or presentation videos online and most of the time the videos are either focused on [...]

Online Books Statistics with R by Vincent Zoonekynd, 2007   It covers 1. Introduction to R 2. Programming in R 3. From Data to Graphics 4. Customizing graphics 5. Factorial methods: Around Principal Component Analysis (PCA) 6. Clustering 7. Probability Distributions 8. Estimators and Statistical Tests 9. Regression 10. Other regressions 11. Regression Problems — [...]

When doing math or numerical analysis, the knowledge of the technique is far too often tied to the tool performing the calculation.  Consider an engineer whose understanding of the Fast Fourier transformation is inseparably tied to the fft function in Matlab.  Of course this hypothetical engineer understands what the results mean (more or less) but [...]

Microsoft Word has long been the prime digital pen friend of ours. There is a saying amongst the geeks that you can never know every thing about MS Word. Its so vast! But you can certainly learn some. So why don’t I tell you some not-so-known keyboard shortcuts for Microsoft Word, which will make your [...]