TESTING/LIN/zrzt02.f(3) Library Functions Manual TESTING/LIN/zrzt02.f(3)

TESTING/LIN/zrzt02.f


double precision function zrzt02 (m, n, af, lda, tau, work, lwork)
ZRZT02

ZRZT02

Purpose:

 ZRZT02 returns
      || I - Q'*Q || / ( M * eps)
 where the matrix Q is defined by the Householder transformations
 generated by ZTZRZF.

Parameters

M 
          M is INTEGER
          The number of rows of the matrix AF.

N

          N is INTEGER
          The number of columns of the matrix AF.

AF

          AF is COMPLEX*16 array, dimension (LDA,N)
          The output of ZTZRZF.

LDA

          LDA is INTEGER
          The leading dimension of the array AF.

TAU

          TAU is COMPLEX*16 array, dimension (M)
          Details of the Householder transformations as returned by
          ZTZRZF.

WORK

          WORK is COMPLEX*16 array, dimension (LWORK)

LWORK

          LWORK is INTEGER
          Length of WORK array. LWORK >= N*N+N.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 89 of file zrzt02.f.

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