TESTING/LIN/dqrt05.f(3) Library Functions Manual TESTING/LIN/dqrt05.f(3)

TESTING/LIN/dqrt05.f


subroutine dqrt05 (m, n, l, nb, result)
DQRT05

DQRT05

Purpose:

 DQRT05 tests DTPQRT and DTPMQRT.

Parameters

M
          M is INTEGER
          Number of rows in lower part of the test matrix.

N

          N is INTEGER
          Number of columns in test matrix.

L

          L is INTEGER
          The number of rows of the upper trapezoidal part the
          lower test matrix.  0 <= L <= M.

NB

          NB is INTEGER
          Block size of test matrix.  NB <= N.

RESULT

          RESULT is DOUBLE PRECISION array, dimension (6)
          Results of each of the six tests below.
          RESULT(1) = | A - Q R |
          RESULT(2) = | I - Q^H Q |
          RESULT(3) = | Q C - Q C |
          RESULT(4) = | Q^H C - Q^H C |
          RESULT(5) = | C Q - C Q |
          RESULT(6) = | C Q^H - C Q^H |

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 79 of file dqrt05.f.

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