DQRT05(3)

📦 version 3.12.0, in opensuse-leap 16.0

okay bestie, welcome to DQRT05(3) from the Library Functions Manual ✨ this is the page for the LAPACK test routine, and we’re gonna get you through every single detail without losing the plot 💅

🎀 NAME 🎀

The name entry is literally just this path, no cap:

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/TESTING/LIN/dqrt05.f

✨ SYNOPSIS ✨

🦋 Functions/Subroutines 🦋

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

💖 Function/Subroutine Documentation 💖

subroutine DQRT05

subroutine DQRT05 (integer m, integer n, integer l, integer nb, double
    precision, dimension(6) result)

DQRT05

🎯 Purpose:

This routine tests DTPQRT and DTPMQRT. That’s the whole purpose, and honestly? iconic.

🌸 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.

🤖 Author

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