DORGBR Methods

The DORGBR type exposes the following members.

Methods

	Name	Description
	Run	Purpose ======= DORGBR generates one of the real orthogonal matrices Q or P**T determined by DGEBRD when reducing a real matrix A to bidiagonal form: A = Q * B * P**T. Q and P**T are defined as products of elementary reflectors H(i) or G(i) respectively. If VECT = 'Q', A is assumed to have been an M-by-K matrix, and Q is of order M: if m .GE. k, Q = H(1) H(2) . . . H(k) and DORGBR returns the first n columns of Q, where m .GE. n .GE. k; if m .LT. k, Q = H(1) H(2) . . . H(m-1) and DORGBR returns Q as an M-by-M matrix. If VECT = 'P', A is assumed to have been a K-by-N matrix, and P**T is of order N: if k .LT. n, P**T = G(k) . . . G(2) G(1) and DORGBR returns the first m rows of P**T, where n .GE. m .GE. k; if k .GE. n, P**T = G(n-1) . . . G(2) G(1) and DORGBR returns P**T as an N-by-N matrix.

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Extension Methods

	Name	Description
	GetEnumNames	(Defined by General)
	IsValidDouble	(Defined by General)

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See Also