CLATTR(3)

💖 CLATTR(3) — triangular test matrix, but make it fashion 💖

okay so bestie, welcome to the Library Functions Manual page for CLATTR(3). It lives at /home/abui...IN/clattr.f(3), and it is lowkey iconic in a deeply nerdy way 💅.

✨ NAME ✨

The file is this exact path, no cap:

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

✨ SYNOPSIS ✨

🧚 Functions/Subroutines

Here’s the subroutine situation, exactly as written:

       subroutine CLATTR (imat, uplo, trans, diag, iseed, n, a, lda, b, work,
           rwork, info)
           CLATTR

🌀 Function/Subroutine Documentation 🌀

Full signature, character-for-character, because we do not play with code:

   subroutine CLATTR (integer imat, character uplo, character trans, character
       diag, integer, dimension( 4 ) iseed, integer n, complex, dimension( lda,
       * ) a, integer lda, complex, dimension( * ) b, complex, dimension( * )
       work, real, dimension( * ) rwork, integer info)
       CLATTR

🌸 Purpose 🌸

CLATTR generates a triangular test matrix in 2-dimensional storage. IMAT and UPLO uniquely specify the properties of the test matrix, which is returned in the array A.

🎀 Parameters 🎀

One by one, because every argument is a main character:

• IMAT — IMAT is INTEGER. It’s the integer key that describes which matrix to generate for this path.
• UPLO — UPLO is CHARACTER*1. It says whether the matrix A is upper or lower triangular. The values are = 'U': Upper triangular and = 'L': Lower triangular.
• TRANS — TRANS is CHARACTER*1. It says whether the matrix or its transpose is used. The values are = 'N': No transpose, = 'T': Transpose, and = 'C': Conjugate transpose.
• DIAG — DIAG is CHARACTER*1. It says whether or not the matrix A is unit triangular. The values are = 'N': Non-unit triangular and = 'U': Unit triangular.
• ISEED — ISEED is INTEGER array, dimension (4). This is the seed vector for the random number generator (used in CLATMS). It is modified on exit.
• N — N is INTEGER. The order of the matrix to be generated.
• A — A is COMPLEX array, dimension (LDA,N). This is the triangular matrix A. If UPLO = 'U', the leading N x N upper triangular part of the array A contains the upper triangular matrix, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N x N lower triangular part of the array A contains the lower triangular matrix and the strictly upper triangular part of A is not referenced.
• LDA — LDA is INTEGER. The leading dimension of the array A. LDA >= max(1,N).
• B — B is COMPLEX array, dimension (N). The right hand side vector, if IMAT > 10.
• WORK — WORK is COMPLEX array, dimension (2*N).
• RWORK — RWORK is REAL array, dimension (N).
• INFO — INFO is INTEGER. = 0: successful exit; < 0: if INFO = -i, the i-th argument had an illegal value.

👑 Author 👑

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

Definition at line 136 of file clattr.f.

🦋 Author 🦋

Generated automatically by Doxygen for LAPACK from the source code.

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okay bestie, that’s the whole page 💖. The footer energy is LAPACK, Version 3.12.0, and it points back to /home/abui...IN/clattr.f(3). Stay triangular, stay iconic, periodt ✨💅