search for: abcba

Hello, We would like to create Google or Firefox like "search hints". If someone types "abc", the search system should name some possible hints. I think, Firefox does it by indexing 3-characters of the domain name. If you enter parts, you get some hints. Thank you very much Marcus

Hi How do I generate all ways of ordering sets of indistinguishable items? suppose I have two A's, two B's and a C. Then I want AABBC AABCB AACBC ABABC . . .snip... BBAAC . . .snip... CBBAA [there are 5!/(2!*2!) = 30 arrangements. Note AABBC != BBAAC] How do I do this? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14