The LLL parameter alpha = m1/n1 has to satisfy 1/4 < α ≤ 1, but here we use a default value 1.
See slides and the account in pp. 94-96 of A Course in Computational Algebraic Number Theory by Henri Cohen.
The matrix A can be entered either (i) as a string of mn integers separated by spaces, or
(ii) cut and pasted from a text file, with entries separated by spaces and each row ended by a newline.
If the matrix entered has LD rows, this is detected during the initial Gram-Schmidt process when Di becomes 0.
Last modified 27th September 2011
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