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Diffstat (limited to 'src/lib/lapack/dlaset.f')
-rw-r--r-- | src/lib/lapack/dlaset.f | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/src/lib/lapack/dlaset.f b/src/lib/lapack/dlaset.f deleted file mode 100644 index fc7bc2f5..00000000 --- a/src/lib/lapack/dlaset.f +++ /dev/null @@ -1,114 +0,0 @@ - SUBROUTINE DLASET( UPLO, M, N, ALPHA, BETA, A, LDA ) -* -* -- LAPACK auxiliary routine (version 3.1) -- -* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. -* November 2006 -* -* .. Scalar Arguments .. - CHARACTER UPLO - INTEGER LDA, M, N - DOUBLE PRECISION ALPHA, BETA -* .. -* .. Array Arguments .. - DOUBLE PRECISION A( LDA, * ) -* .. -* -* Purpose -* ======= -* -* DLASET initializes an m-by-n matrix A to BETA on the diagonal and -* ALPHA on the offdiagonals. -* -* Arguments -* ========= -* -* UPLO (input) CHARACTER*1 -* Specifies the part of the matrix A to be set. -* = 'U': Upper triangular part is set; the strictly lower -* triangular part of A is not changed. -* = 'L': Lower triangular part is set; the strictly upper -* triangular part of A is not changed. -* Otherwise: All of the matrix A is set. -* -* M (input) INTEGER -* The number of rows of the matrix A. M >= 0. -* -* N (input) INTEGER -* The number of columns of the matrix A. N >= 0. -* -* ALPHA (input) DOUBLE PRECISION -* The constant to which the offdiagonal elements are to be set. -* -* BETA (input) DOUBLE PRECISION -* The constant to which the diagonal elements are to be set. -* -* A (input/output) DOUBLE PRECISION array, dimension (LDA,N) -* On exit, the leading m-by-n submatrix of A is set as follows: -* -* if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n, -* if UPLO = 'L', A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n, -* otherwise, A(i,j) = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j, -* -* and, for all UPLO, A(i,i) = BETA, 1<=i<=min(m,n). -* -* LDA (input) INTEGER -* The leading dimension of the array A. LDA >= max(1,M). -* -* ===================================================================== -* -* .. Local Scalars .. - INTEGER I, J -* .. -* .. External Functions .. - LOGICAL LSAME - EXTERNAL LSAME -* .. -* .. Intrinsic Functions .. - INTRINSIC MIN -* .. -* .. Executable Statements .. -* - IF( LSAME( UPLO, 'U' ) ) THEN -* -* Set the strictly upper triangular or trapezoidal part of the -* array to ALPHA. -* - DO 20 J = 2, N - DO 10 I = 1, MIN( J-1, M ) - A( I, J ) = ALPHA - 10 CONTINUE - 20 CONTINUE -* - ELSE IF( LSAME( UPLO, 'L' ) ) THEN -* -* Set the strictly lower triangular or trapezoidal part of the -* array to ALPHA. -* - DO 40 J = 1, MIN( M, N ) - DO 30 I = J + 1, M - A( I, J ) = ALPHA - 30 CONTINUE - 40 CONTINUE -* - ELSE -* -* Set the leading m-by-n submatrix to ALPHA. -* - DO 60 J = 1, N - DO 50 I = 1, M - A( I, J ) = ALPHA - 50 CONTINUE - 60 CONTINUE - END IF -* -* Set the first min(M,N) diagonal elements to BETA. -* - DO 70 I = 1, MIN( M, N ) - A( I, I ) = BETA - 70 CONTINUE -* - RETURN -* -* End of DLASET -* - END |