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## Lexicographic Order Algorithms 1.0

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OS Support: WinXP, Win7 x32, Win7 x64, Win2000, WinServer, Win98, WinOther, Win Vista

Version 1.0

Size 0.02Mb

Hits: 322 visitors

Downloads: 179

License: Freeware

Date added: 15 Oct 2013

Last Update: 04 Oct 2012

**See full specifications****Publisher's description**

Algorithms, software,

__source code__calculate

__lexicographic__order of combinations; compiled

__program__and source code are included. The source code uses two

__algorithms__to find the index or rank for a combination; or find combination for given rank.

The first algorithm was discovered by B. P. Buckles and M. Lybanon (1977). The second algorithm was created by Ion Saliu (2001). The source code is in the Power Basic Console Compiler programming language.

Both lexicographical algorithms are very fast; the calculations are almost instantaneous. The algorithms can be expanded to cover even more complex sets, such as Powerball/Euromillions types of lottery games.

Writing

__software__to automatically calculate the

__lexicographical order__or rank for a combination - and vice versa - is extremely attractive to a large number of computer programmers and scientists. This is the first successful attempt to write software that does the precise calculations for both situations. This computer programmer expanded his knowledge from the combination sets to all four numerical sets: Exponents, permutations, arrangements (and combinations, of course).

Included is also a fast and accurate function to calculate combinations of N numbers taken M at a time (e.g. combinations for a 6-49 lotto game).

It works best at the command prompt for best speed; all 32/64 bit versions of Windows supported. http://saliu.com/membership.html http://saliu.com/lexicographic.html . Absolutely the best on lexicographical order, lexicographic, combinatorics, formula, formulas, algorithms, mathematics, software, program, source code,

__Basic language__

**Available Translations:**None

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