--- rpl/lapack/blas/dgemv.f 2012/12/14 14:22:02 1.10 +++ rpl/lapack/blas/dgemv.f 2023/08/07 08:38:43 1.17 @@ -2,14 +2,14 @@ * * =========== DOCUMENTATION =========== * -* Online html documentation available at -* http://www.netlib.org/lapack/explore-html/ +* Online html documentation available at +* http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE DGEMV(TRANS,M,N,ALPHA,A,LDA,X,INCX,BETA,Y,INCY) -* +* * .. Scalar Arguments .. * DOUBLE PRECISION ALPHA,BETA * INTEGER INCX,INCY,LDA,M,N @@ -18,7 +18,7 @@ * .. Array Arguments .. * DOUBLE PRECISION A(LDA,*),X(*),Y(*) * .. -* +* * *> \par Purpose: * ============= @@ -71,7 +71,7 @@ *> *> \param[in] A *> \verbatim -*> A is DOUBLE PRECISION array of DIMENSION ( LDA, n ). +*> A is DOUBLE PRECISION array, dimension ( LDA, N ) *> Before entry, the leading m by n part of the array A must *> contain the matrix of coefficients. *> \endverbatim @@ -86,7 +86,7 @@ *> *> \param[in] X *> \verbatim -*> X is DOUBLE PRECISION array of DIMENSION at least +*> X is DOUBLE PRECISION array, dimension at least *> ( 1 + ( n - 1 )*abs( INCX ) ) when TRANS = 'N' or 'n' *> and at least *> ( 1 + ( m - 1 )*abs( INCX ) ) otherwise. @@ -110,7 +110,7 @@ *> *> \param[in,out] Y *> \verbatim -*> Y is DOUBLE PRECISION array of DIMENSION at least +*> Y is DOUBLE PRECISION array, dimension at least *> ( 1 + ( m - 1 )*abs( INCY ) ) when TRANS = 'N' or 'n' *> and at least *> ( 1 + ( n - 1 )*abs( INCY ) ) otherwise. @@ -129,12 +129,10 @@ * Authors: * ======== * -*> \author Univ. of Tennessee -*> \author Univ. of California Berkeley -*> \author Univ. of Colorado Denver -*> \author NAG Ltd. -* -*> \date November 2011 +*> \author Univ. of Tennessee +*> \author Univ. of California Berkeley +*> \author Univ. of Colorado Denver +*> \author NAG Ltd. * *> \ingroup double_blas_level2 * @@ -156,10 +154,9 @@ * ===================================================================== SUBROUTINE DGEMV(TRANS,M,N,ALPHA,A,LDA,X,INCX,BETA,Y,INCY) * -* -- Reference BLAS level2 routine (version 3.4.0) -- +* -- Reference BLAS level2 routine -- * -- Reference BLAS is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- -* November 2011 * * .. Scalar Arguments .. DOUBLE PRECISION ALPHA,BETA @@ -278,24 +275,20 @@ JX = KX IF (INCY.EQ.1) THEN DO 60 J = 1,N - IF (X(JX).NE.ZERO) THEN - TEMP = ALPHA*X(JX) - DO 50 I = 1,M - Y(I) = Y(I) + TEMP*A(I,J) - 50 CONTINUE - END IF + TEMP = ALPHA*X(JX) + DO 50 I = 1,M + Y(I) = Y(I) + TEMP*A(I,J) + 50 CONTINUE JX = JX + INCX 60 CONTINUE ELSE DO 80 J = 1,N - IF (X(JX).NE.ZERO) THEN - TEMP = ALPHA*X(JX) - IY = KY - DO 70 I = 1,M - Y(IY) = Y(IY) + TEMP*A(I,J) - IY = IY + INCY - 70 CONTINUE - END IF + TEMP = ALPHA*X(JX) + IY = KY + DO 70 I = 1,M + Y(IY) = Y(IY) + TEMP*A(I,J) + IY = IY + INCY + 70 CONTINUE JX = JX + INCX 80 CONTINUE END IF @@ -329,6 +322,6 @@ * RETURN * -* End of DGEMV . +* End of DGEMV * END