Re: INFORMATIONS
- To: mathgroup at smc.vnet.net
- Subject: [mg17343] Re: INFORMATIONS
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Mon, 3 May 1999 01:45:51 -0400
- References: <7gdso3$q58@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Francesco Paolone <lwpao at tin.it> wrote in message news:7gdso3$q58 at smc.vnet.net... > > I am a new "Mathematica" user. > I'm not a mathematician but interested in "Mathematica" possibilities about > combinatory calculations. > I've read the about Help file but I haven't understood how in practice I can > do it. How to order the computer to do for example this: > input: 3 5 15 22 52 90 > output: show me all the possible combinations for those numbers. > Can you teach me about, showing me step by step what I can do? > My "Mathematica" version is 3.0 and my operative system is Mac OS 8.5 > > I'd like also informations about Italian sites for "Mathematica" and about > combinatorica related to Lottos and Lotteries (also in english). > > Thank you very much > > GIUSEPPE PAOLONE > ROME ITALY > e-mail: lwpao at tin.it > > There is the built in fuction Permutations: Permutations[{a,b ,a,c}] {{a,b,a,c},{a,b,c,a},{a,a,b,c},{a,a,c,b},{a,c,b,a},{a,c,a,b},{b,a,a,c},{b,a, c, a},{b,c,a,a},{c,a,b,a},{c,a,a,b},{c,b,a,a}} And a lot more in the add-on packages. Look in the Help Browser Help>Help>Add-ons > Standard Packags > DiscreteMath In particular at the two packages, "Combinatorica" and "Permutations". Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565