FACTORADIC

Version 1.1.0.0 (1,77 ko) par Darren Rowland
Obtain the factorial radix representation of a number.
5.0
(1)
941 téléchargements
Mise à jour 27 avr. 2009

Afficher la licence

F = factoradic(M,N) returns the conversion of integer M into factorial radix. F is a 1-by-N vector. The factoradic is also known as the Lehmer Code. The factoradic of M is best understood by example.

Example: 89 = 3x4! + 2x3! + 2x2! + 1x1! + 0x0!
therefore factoradic(89,5) = (3,2,2,1,0)

M must lie in the range [0 : N!-1].
Leading zeros will be present in F when M < (N-1)!-1.

Example: factoradic(19,6) = (0,0,3,0,1,0)

A practical use of the factoradic is the generation of permutations. See ONEPERM on the File Exchange.

Citation pour cette source

Darren Rowland (2026). FACTORADIC (https://fr.mathworks.com/matlabcentral/fileexchange/23066-factoradic), MATLAB Central File Exchange. Extrait(e) le .

Compatibilité avec les versions de MATLAB
Créé avec R14
Compatible avec toutes les versions
Plateformes compatibles
Windows macOS Linux
Tags Ajouter des tags
Ouvrir dans un nouvel onglet
Version Publié le Notes de version
1.1.0.0

Thanks to Stefano Bolli for noticing a typo in the error-checking.
1.0.0.0