Re: Matrix of possible combinations of N elements

*To*: mathgroup at smc.vnet.net*Subject*: [mg31856] Re: [mg31830] Matrix of possible combinations of N elements*From*: Tomas Garza <tgarza01 at prodigy.net.mx>*Date*: Fri, 7 Dec 2001 05:56:52 -0500 (EST)*References*: <200112051151.GAA06760@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Do you mean this? In[1]:= Permutations[{a,b,c,d}] Out[1]= {{a,b,c,d},{a,b,d,c},{a,c,b,d},{a,c,d,b},{a,d,b,c},{a,d,c,b},{b,a,c,d},{b,a, d, c},{b,c,a,d},{b,c,d,a},{b,d,a,c},{b,d,c,a},{c,a,b,d},{c,a,d,b},{c,b,a, d},{c,b,d,a},{c,d,a,b},{c,d,b,a},{d,a,b,c},{d,a,c,b},{d,b,a,c},{d,b,c, a},{d,c,a,b},{d,c,b,a}} Tomas Garza Mexico City ----- Original Message ----- From: "Per Schjetne" <per.schjetne at dmhuset.no> To: mathgroup at smc.vnet.net Subject: [mg31856] [mg31830] Matrix of possible combinations of N elements > I have N elements and want to make a matrix of all possible combinations. > Example: > > A, B, C, D -> 4 elements > Combinations with 2 similar characters are not allowed (AAAA, AABB etc) > So that gives me 4*3*2*1=24 unique combinations > I have no problem writing all the combinations down, but I find it hard to > make a general function/algorithm in VB for generating matrix of any number > of elements. > > I know this is a common problem and instead of using days on this problem I > ask you gurus here! > > Per :-) > > > > > > > >

**References**:**Matrix of possible combinations of N elements***From:*"Per Schjetne" <per.schjetne@dmhuset.no>