“The GNU Scientific Library (GSL) is a numerical library for C and C++ programmers. The library provides a wide range of mathematical routines such as random number generators, special functions and least-squares fitting. There are over 1000 functions in total with an extensive test suite”.
GSL is quite Unix centric but one might want to use [...]
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MinGW binaries of NetCDF 3.6.2
“netCDF (network Common Data Form) is a set of software libraries and machine-independent data formats that support the creation, access, and sharing of array-oriented scientific data”. On its homepage you’ll find a lot of precompiled libraries for Unix derivates but only a binary of netCDF 3.6.1 compiled with Visual C++. It’s possible to use this [...]
Create a movie file from single image files (png, jpegs)
In research sometimes you want to make a movie from single images, like plots from experimental data or from calculation to visualize changes or so on. In order to achieve this you can use ffmpeg. First you have to create the images and save them, where the images need to have a continuous number in [...]
Install gnuplot on Ubuntu
There is an updated Howto for Ubuntu Gutsy Gibbon available.
Though there is gnuplot available in the Ubuntu/Debian repositories, there are reasons to compile gnuplot - first and most important gnu readline support! I don’t know why Debian maintainers don’t compile the GNU readline support into GNUplot - it’s some license issues - but it’s [...]
Using \subref in the caption of a figure (LaTeX)
I use the subfig package and when I compiled my thesis in Linux I encountered a problem, when I used the \subref command in the caption of a figure. The compilation was stopped with the error message “Argument of \@tempf has an extra }.”
Scanning the internet I found this forum entry in German where it [...]
Web version of “Abramowitz and Stegun: Handbook of Mathematical Functions”
The book “Handbook of Mathematical Functions” of Abramowitz and Stegun is a very important book, if someone does any complicated calculations in physics or mathematics.
There is a website were you can view this book online, or even download it. A pdf version is also available for download.
The perfect plot program
Hmm, there is obviously not any out there. I tried many of them. I actually battled all of them. All suck. Big times. But there is gnuplot. It’s cross plattform, which is not a bad thing if you are working at a research facility. It’s not as easy as other programs, because you need to [...]
Digitize Plots
If you want to digitize a plot in an article or report to e.g. do some calculations with them, there is a good program, which is free and cross platform: Plot Digitizer. You scan a plot to png or gif, or cut out a plot from a pdf file and save it as png and [...]
