From 8c8d2f518968ce7057eec6aa5cd5aec8faab861a Mon Sep 17 00:00:00 2001 From: jofret Date: Tue, 28 Apr 2009 07:17:00 +0000 Subject: Moving lapack to right place --- src/lib/lapack/dlange.f | 144 ------------------------------------------------ 1 file changed, 144 deletions(-) delete mode 100644 src/lib/lapack/dlange.f (limited to 'src/lib/lapack/dlange.f') diff --git a/src/lib/lapack/dlange.f b/src/lib/lapack/dlange.f deleted file mode 100644 index fec96ac7..00000000 --- a/src/lib/lapack/dlange.f +++ /dev/null @@ -1,144 +0,0 @@ - DOUBLE PRECISION FUNCTION DLANGE( NORM, M, N, A, LDA, WORK ) -* -* -- LAPACK auxiliary routine (version 3.1) -- -* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. -* November 2006 -* -* .. Scalar Arguments .. - CHARACTER NORM - INTEGER LDA, M, N -* .. -* .. Array Arguments .. - DOUBLE PRECISION A( LDA, * ), WORK( * ) -* .. -* -* Purpose -* ======= -* -* DLANGE returns the value of the one norm, or the Frobenius norm, or -* the infinity norm, or the element of largest absolute value of a -* real matrix A. -* -* Description -* =========== -* -* DLANGE returns the value -* -* DLANGE = ( max(abs(A(i,j))), NORM = 'M' or 'm' -* ( -* ( norm1(A), NORM = '1', 'O' or 'o' -* ( -* ( normI(A), NORM = 'I' or 'i' -* ( -* ( normF(A), NORM = 'F', 'f', 'E' or 'e' -* -* where norm1 denotes the one norm of a matrix (maximum column sum), -* normI denotes the infinity norm of a matrix (maximum row sum) and -* normF denotes the Frobenius norm of a matrix (square root of sum of -* squares). Note that max(abs(A(i,j))) is not a consistent matrix norm. -* -* Arguments -* ========= -* -* NORM (input) CHARACTER*1 -* Specifies the value to be returned in DLANGE as described -* above. -* -* M (input) INTEGER -* The number of rows of the matrix A. M >= 0. When M = 0, -* DLANGE is set to zero. -* -* N (input) INTEGER -* The number of columns of the matrix A. N >= 0. When N = 0, -* DLANGE is set to zero. -* -* A (input) DOUBLE PRECISION array, dimension (LDA,N) -* The m by n matrix A. -* -* LDA (input) INTEGER -* The leading dimension of the array A. LDA >= max(M,1). -* -* WORK (workspace) DOUBLE PRECISION array, dimension (MAX(1,LWORK)), -* where LWORK >= M when NORM = 'I'; otherwise, WORK is not -* referenced. -* -* ===================================================================== -* -* .. Parameters .. - DOUBLE PRECISION ONE, ZERO - PARAMETER ( ONE = 1.0D+0, ZERO = 0.0D+0 ) -* .. -* .. Local Scalars .. - INTEGER I, J - DOUBLE PRECISION SCALE, SUM, VALUE -* .. -* .. External Subroutines .. - EXTERNAL DLASSQ -* .. -* .. External Functions .. - LOGICAL LSAME - EXTERNAL LSAME -* .. -* .. Intrinsic Functions .. - INTRINSIC ABS, MAX, MIN, SQRT -* .. -* .. Executable Statements .. -* - IF( MIN( M, N ).EQ.0 ) THEN - VALUE = ZERO - ELSE IF( LSAME( NORM, 'M' ) ) THEN -* -* Find max(abs(A(i,j))). -* - VALUE = ZERO - DO 20 J = 1, N - DO 10 I = 1, M - VALUE = MAX( VALUE, ABS( A( I, J ) ) ) - 10 CONTINUE - 20 CONTINUE - ELSE IF( ( LSAME( NORM, 'O' ) ) .OR. ( NORM.EQ.'1' ) ) THEN -* -* Find norm1(A). -* - VALUE = ZERO - DO 40 J = 1, N - SUM = ZERO - DO 30 I = 1, M - SUM = SUM + ABS( A( I, J ) ) - 30 CONTINUE - VALUE = MAX( VALUE, SUM ) - 40 CONTINUE - ELSE IF( LSAME( NORM, 'I' ) ) THEN -* -* Find normI(A). -* - DO 50 I = 1, M - WORK( I ) = ZERO - 50 CONTINUE - DO 70 J = 1, N - DO 60 I = 1, M - WORK( I ) = WORK( I ) + ABS( A( I, J ) ) - 60 CONTINUE - 70 CONTINUE - VALUE = ZERO - DO 80 I = 1, M - VALUE = MAX( VALUE, WORK( I ) ) - 80 CONTINUE - ELSE IF( ( LSAME( NORM, 'F' ) ) .OR. ( LSAME( NORM, 'E' ) ) ) THEN -* -* Find normF(A). -* - SCALE = ZERO - SUM = ONE - DO 90 J = 1, N - CALL DLASSQ( M, A( 1, J ), 1, SCALE, SUM ) - 90 CONTINUE - VALUE = SCALE*SQRT( SUM ) - END IF -* - DLANGE = VALUE - RETURN -* -* End of DLANGE -* - END -- cgit