Dear all, I have a matrix M1 with integer entries with 90 rows and 6 columns. After applying LLL algorithm of M1, I get M2=M1.LLL(). I want to get corresponding unimodular transformation matrix T such that T*M1=M2. We can find T by T=M2*M1.pseudoinverse() or T== M1.solve_left(M2), but determinant of T becomes 0 i.e., T.det()=0. I want T.det()=1.
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