ctzt02.f File Reference

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Functions/Subroutines
real function	ctzt02 (M, N, AF, LDA, TAU, WORK, LWORK)
	CTZT02 More...

Function/Subroutine Documentation

real function ctzt02	(	integer	M,
		integer	N,
		complex, dimension( lda, * )	AF,
		integer	LDA,
		complex, dimension( * )	TAU,
		complex, dimension( lwork )	WORK,
		integer	LWORK
	)

CTZT02

Purpose:

 CTZT02 returns
      || I - Q'*Q || / ( M * eps)
 where the matrix Q is defined by the Householder transformations
 generated by CTZRQF.

Parameters

[in]	M	M is INTEGER The number of rows of the matrix AF.
[in]	N	N is INTEGER The number of columns of the matrix AF.
[in]	AF	AF is COMPLEX array, dimension (LDA,N) The output of CTZRQF.
[in]	LDA	LDA is INTEGER The leading dimension of the array AF.
[in]	TAU	TAU is COMPLEX array, dimension (M) Details of the Householder transformations as returned by CTZRQF.
[out]	WORK	WORK is COMPLEX array, dimension (LWORK)
[in]	LWORK	LWORK is INTEGER length of WORK array. Must be >= N*N+N

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date

November 2011

Definition at line 91 of file ctzt02.f.

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