Description of orgqr

orgqr		Programmers Guide
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Category:mtl2lapack

Component type:function

Prototype

template <class LapackMatA, class VectorT> int orgqr(LapackMatA& a, const VectorT& tau) ;

Description

Generate an M-by-N real matrix Q with orthonormal columns.

a (IN/OUT - matrix(M,N) On entry, the i-th column must contain the vector which defines the elementary reflector H(i), for i = 1,2,...,k, as returned by GEQRF in the first k columns of its array argument A. On exit, the M-by-N matrix Q.
tau (IN - vector(K)) tau[i] must contain the scalar factor of the elementary reflector H(i), as returned by GEQRF.

Definition

mtl2lapack.h

Preconditions

Complexity

Example

Notes

See also