On 9/21/07, Charles R Harris <[EMAIL PROTECTED]> wrote: > > > > On 9/21/07, Gael Varoquaux <[EMAIL PROTECTED]> wrote: > > > > Hi all, > > > > I want to generate all the possible triplets of integers in [0, n]. I am > > wondering want the best possible way to do this is. > > > > To make things clearer, I could generate i, j, k using indices: > > > > i, j, k = indices((n, n, n)) > > > > But I will have several times the same triplet with different ordenings. > > I am looking for a loop-free way of creating three arrays i, j, k with > > all the triplets present once, and only once. > > > > Any hint appreciated. > > > Go here, > http://www.cs.utsa.edu/~wagner/knuth/<http://www.cs.utsa.edu/%7Ewagner/knuth/>. > I think you want fascicle 4A, > http://www.cs.utsa.edu/~wagner/knuth/fasc4a.pdf<http://www.cs.utsa.edu/%7Ewagner/knuth/fasc4a.pdf>. > Some of the fascicles from Vol 4 of TAOCP are now in print, > http://tinyurl.com/2goxpr. >
Oops, make that fascicle 3A, not 4A. Chuck
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