The Python audio processing suite is a module that contains a variety of convenience functions to process audio signals. It can be used to plot spectral analyses of a song across time and to quickly ascertain encoding quality, but the instrumental goal of this suite is to robustly identify duplicated songs, regardless of which album they were released in, encoding quality, or start time.
GraSy is a tool that converts context-free grammars, which are written in the "Backus-Naur Form" (BNF), into syntax diagrams and the other way around. The grammar and the syntax diagrams can be saved with g2s-file. It is also possible to export syntax diagrams as PostScript files. To keep a good overview while creating syntax diagrams it is possible to change the zoom level.
Scientific Calculator Midlet is a midlet with the following features: scientific operation, different number systems, a traditional user interface, unlimited levels of brackets, 6 memory entries for intermediate results, a preview of the memory contents, an online help system, constants, and user-defined functions.
MonoDecrypt uses pattern matching and its knowledge about character frequencies in order to decrypt messages encoded with a monoalphabetic substitution cipher. MonoDecrypt can decrypt texts of any language, as long as it has sufficient information about the language. Depending on the information you give it, the tool decrypts about 50%-100% on its own. Then you can decrypt the remaining data by filling the gaps or correcting bad guesses. MonoDecrypt can also encrypt texts using monoalphabetic substitution.
Mathnium is a program for interactive numerical computations. With its comprehensive library of functions for a variety of problems in applied mathematics, and with its facilities for the definition and manipulation of arrays of numbers as basic data objects, Mathnium allows you to solve numerical problems rather painlessly and without a great deal of programming effort. Mathnium may also be used as a programming language to implement numerical algorithms in a concise manner which usually is very close to the mathematical description of the algorithms.