lrdev software

C: C programming language comments translator state machine [information / source] opensource

Translates C++ comments to C comments. A (simple, somewhat optimized) state machine takes care of the translation. The translator can be seen as a simple language lexer for C-oid programming languages (C/C++/Java/...) .

C: Figure construction patterns [information / source / source / source] opensource

Figure construction patterns for figures constructed from squares [polyominoes].

C: Rich text format normalization tool [information / source] opensource

Normalizes RTF documents. Normalized formats are useable with version control tools and readable as raw data (i.e. without wysiwyg application).

C: Sparse file converter [information / source] opensource

Translates (sparse) data (back) into sparse files. Useful for data that got eventually expanded while copied, moved or restored.

C++: VRML glass constructor [information / source] opensource

Allows to design drinking glasses as virtual reality modeling language representations.

Java: Big rational numbers [information / source] opensource

Dynamically sized big rational numbers for Java. Big rational numbers allow exact calculations with the operations add/subtract/multiply/divide. May be of help with money data types.

Java: Big rational numbers calculator [source] opensource

Calculator to illustrate the use of BigRationals, including NaN handling and persistence, as well as an adapter for Java math functions (reflective, as illustration for custom plugins).

Java, PostScript: Graphics Turtle [information / source / source] opensource

The Graphics Turtle, known from the Logo programming language, is a cursor that has a position (X and Y coordinates), a heading and a pen up/down state. Procedures as forward, left, etc are used as drawing idioms.

Lisp, Mathematica: Blackjack game probabilities [information / source / source] opensource

Basic strategy (uncounted, 'infinite' deck) Blackjack game probabilities. The useful hit/stand strategy tables are calculated based on these probabilities.

Mathematica: Graphics to VRML converter [information / source] opensource

Provides a set of functions to convert Mathematica 3D graphics objects to virtual reality modeling language (VRML, version 1.0) documents.

Palm/RPN: regressions [information / source] opensource

Linear, logarithmic, exponential and power two variable regressions for Palm's RPN calculator.

puzzles, riddles

C++: c't's 3d packing puzzle [information / source] opensource

Calculates three-dimensional packings of 12 puzzle pieces into a cuboid of appropriate size. The pieces consist of four to six cubes of the same size, interconnected at the cubes' sides.

Java: a visual riddle [information / source] opensource

Lets the user gradually increase visual effects, to help understanding/solving the riddle.