(S|D|SC|DZ)ASUM¶

Single, double, single complex, and double complex ASUM.

Description¶

Sum of the absolute value of the elements of the vector.

$\result = \sum_{i=1}^N |X_{i}|$

BLAS Interface¶

float  sasum(const qml_long *N, const float *X, const qml_long *INCX);

double dasum(const qml_long *N, const double *X, const qml_long *INCX);

float  scasum(const qml_long *N, const qml_single_complex *X,
              const qml_long *INCX);

double dzasum(const qml_long *N, const qml_double_complex *X,
              const qml_long *INCX);

CBLAS Interface¶

float  cblas_sasum(const qml_long N, const float *X, const qml_long INCX);

double cblas_dasum(const qml_long N, const double *X, const qml_long INCX);

float  cblas_scasum(const qml_long N, const qml_single_complex *X,
                    const qml_long INCX);

double cblas_dzasum(const qml_long N, const qml_double_complex *X,
                    const qml_long INCX);

Arguments¶

N	Number of elements in X
X	Input vector, must be at least: $(\fvar{N}-1)\mult\abs{\fvar{INCX}} + 1$
INCX	Distance between individual elements in X
Result	Sum of absolute value of elements of vector X