cblas_i?amin
cblas_i?amin
Finds the index of the element with the smallest absolute
value.
Syntax
CBLAS_INDEX
cblas_isamin
(
const
MKL_INT
n
,
const
float
*x
,
const
MKL_INT
incx
);
CBLAS_INDEX
cblas_idamin
(
const
MKL_INT
n
,
const
double
*x
,
const
MKL_INT
incx
);
CBLAS_INDEX
cblas_icamin
(
const
MKL_INT
n
,
const
void
*x
,
const
MKL_INT
incx
);
CBLAS_INDEX
cblas_izamin
(
const
MKL_INT
n
,
const
void
*x
,
const
MKL_INT
incx
);
Include Files
- mkl.h
Description
Given a vector that has the
smallest absolute value for real flavors, or the smallest sum
x
, the i?amin
functions return the
position of the vector element x
[i
]|Re(
for complex flavors.x
[i
])|+|Im(x
[i
])|If either
n
or incx
are not positive, the routine returns 0
. If more than one vector element is found with the same smallest
absolute value, the index of the first one encountered is returned.
If the vector contains
NaN
values, then the routine returns the index of the first NaN
.Input Parameters
- n
- On entry,nspecifies the number of elements in vectorx.
- x
- Array, size at least(1+(.n-1)*abs(incx))
- incx
- Specifies the increment for the elements ofx.
Return Values
Indicates the position of vector element with the smallest
absolute value such that has the
smallest absolute value. The index returned is zero-based.
x
[index
-1]