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[Lapack] Regarding functions and results from CLAPACK

Dear Koushik,

I presume that you meant DGEQRF rather than DGETRF (which does an LU 
factorization)?  You do not need to decode the results yourself, you can 
use DORGQR to generate Q, or DORMQR to apply Q (or Q^T) to a vector or 
matrix.  See the Users' Guide for details.

Best wishes,

Sven Hammarling.

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