geqp3_test, a FORTRAN77 code which calls geqp3(), which contains the portion of the LAPACK library that carries out the QR factorization, with column pivoting, of an M by N rectangular matrix, with N <= M.
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geqp3, a FORTRAN77 code which contains the portion of the LAPACK library that carries out the QR factorization, with column pivoting, of an M by N rectangular matrix, with N <= M.