version 1.15, 2018/05/29 07:19:42
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version 1.16, 2023/08/07 08:38:44
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date November 2017 |
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* |
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*> \ingroup complex16_blas_level1 |
*> \ingroup complex16_blas_level1 |
* |
* |
*> \par Further Details: |
*> \par Further Details: |
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* ===================================================================== |
* ===================================================================== |
SUBROUTINE ZDSCAL(N,DA,ZX,INCX) |
SUBROUTINE ZDSCAL(N,DA,ZX,INCX) |
* |
* |
* -- Reference BLAS level1 routine (version 3.8.0) -- |
* -- Reference BLAS level1 routine -- |
* -- Reference BLAS is a software package provided by Univ. of Tennessee, -- |
* -- Reference BLAS is a software package provided by Univ. of Tennessee, -- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- |
* November 2017 |
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* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
DOUBLE PRECISION DA |
DOUBLE PRECISION DA |
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* |
* |
* .. Local Scalars .. |
* .. Local Scalars .. |
INTEGER I,NINCX |
INTEGER I,NINCX |
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* .. Parameters .. |
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DOUBLE PRECISION ONE |
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PARAMETER (ONE=1.0D+0) |
* .. |
* .. |
* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
INTRINSIC DCMPLX |
INTRINSIC DBLE, DCMPLX, DIMAG |
* .. |
* .. |
IF (N.LE.0 .OR. INCX.LE.0) RETURN |
IF (N.LE.0 .OR. INCX.LE.0 .OR. DA.EQ.ONE) RETURN |
IF (INCX.EQ.1) THEN |
IF (INCX.EQ.1) THEN |
* |
* |
* code for increment equal to 1 |
* code for increment equal to 1 |
* |
* |
DO I = 1,N |
DO I = 1,N |
ZX(I) = DCMPLX(DA,0.0d0)*ZX(I) |
ZX(I) = DCMPLX(DA*DBLE(ZX(I)),DA*DIMAG(ZX(I))) |
END DO |
END DO |
ELSE |
ELSE |
* |
* |
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* |
* |
NINCX = N*INCX |
NINCX = N*INCX |
DO I = 1,NINCX,INCX |
DO I = 1,NINCX,INCX |
ZX(I) = DCMPLX(DA,0.0d0)*ZX(I) |
ZX(I) = DCMPLX(DA*DBLE(ZX(I)),DA*DIMAG(ZX(I))) |
END DO |
END DO |
END IF |
END IF |
RETURN |
RETURN |
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* |
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* End of ZDSCAL |
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* |
END |
END |