Mathematics | Scientific calculations and data analysis | Biochemijai | Kompiuterinė lingvistika (tekstų analizė) | Text editing
Mathematics

SAGE is free open source math software that supports research and teaching in algebra, geometry, number theory, cryptography, numerical computation, and related areas. Includes Maxima, Singular, PARI, Matplotlib and other opensource math packages. You can use internet interface (sage-notebok) to access all the features (needs Firefox).


Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. Maxima yields high precision numeric results by using exact fractions, arbitrary precision integers, and arbitrarily precision floating point numbers. Maxima can plot functions and data in two and three dimensions.
Scientific calculations and data analysis


Scilab is a scientific software package for numerical computations providing a powerful open computing environment for engineering and scientific applications. A number of toolboxes are available with the system: 2-D and 3-D graphics, animation Linear algebra, sparse matrices Polynomials and rational functions Interpolation, approximation Simulation: ODE solver and DAE solver Scicos: a hybrid dynamic systems modeler and simulator Classic and robust control, LMI optimization Differentiable and non-differentiable optimization Signal processing Metanet: graphs and networks Parallel Scilab Statistics Interface with Computer Algebra: Maple package for Scilab code generation Interface with Fortran, Tcl/Tk, C, C++, Java, LabVIEW And a large number of contributions for various domains.


R is a language and environment for statistical computing and graphics. Language is similar to proprietary S-plus statistical package. R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, ...) and graphical techniques, and is highly extensible. The S language is often the vehicle of choice for research in statistical methodology, and R provides an Open Source route to participation in that activity.

RKWard is meant to become an easy to use, transparent frontend to the R-language, a very powerful, yet hard-to-get-into scripting-language with a strong focus on statistic functions. It will not only provide a convenient user-interface, however, but also take care of seamless integration with an office-suite. Practical statistics is not just about calculating, after all, but also about documenting and ultimately publishing the results.
Biochemijai

cell image analysis software is designed for biologists without training in computer vision or programming to quantitatively measure phenotypes from thousands of images automatically
Kompiuterinė lingvistika (tekstų analizė)

WordNet® is a large lexical database of English. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept. Synsets are interlinked by means of conceptual-semantic and lexical relations. The resulting network of meaningfully related words and concepts can be navigated with the browser.
Text editing

LyX is a document processor that encourages an approach to writing based on the structure of your documents, not their appearance.