v?Abs
v?Abs
Computes absolute value of vector elements.
Syntax
vsAbs
(
n
,
a
,
y
)
;
vsAbsI(n, a, inca, y, incy);
vmsAbs
(
n
,
a
,
y
,
mode
)
;
vmsAbsI(n, a, inca, y, incy, mode);
vdAbs
(
n
,
a
,
y
)
;
vdAbsI(n, a, inca, y, incy);
vmdAbs
(
n
,
a
,
y
,
mode
)
;
vmdAbsI(n, a, inca, y, incy, mode);
vcAbs
(
n
,
a
,
y
)
;
vcAbsI(n, a, inca, y, incy);
vmcAbs
(
n
,
a
,
y
,
mode
)
;
vmcAbsI(n, a, inca, y, incy, mode);
vzAbs
(
n
,
a
,
y
)
;
vzAbsI(n, a, inca, y, incy);
vmzAbs
(
n
,
a
,
y
,
mode
)
;
vmzAbsI(n, a, inca, y, incy, mode);
Include Files
- mkl.h
Input Parameters
Name | Type | Description |
|---|---|---|
n | const
MKL_INT | Specifies the number of
elements to be calculated. |
a | const
float* for vsAbs , vmsAbs const
double* for vdAbs , vmdAbs const
MKL_Complex8* for vcAbs , vmcAbs const
MKL_Complex16* for vzAbs , vmzAbs | Pointer to an array that contains the
input vector a . |
inca , incy | const MKL_INT | Specifies increments for
the elements of a and y . |
mode | const
MKL_INT64 | Overrides global VM
mode setting for this function call. See vmlSetMode for possible values
and their description. |
Output Parameters
Name | Type | Description |
|---|---|---|
y | float* for vsAbs , vmsAbs , vcAbs , vmcAbs double* for vdAbs , vmdAbs , vzAbs , vmzAbs | Pointer to an array that contains the
output vector y . |
Description
The
v?Abs
function computes an absolute value of vector elements.Argument | Result | Exception |
|---|---|---|
+0 | +0 | |
-0 | +0 | |
+ ∞ | + ∞ | |
- ∞ | + ∞ | |
QNAN | QNAN | |
SNAN | QNAN | INVALID |
Specifications for special values of the complex functions are
defined according to the following formula
Abs(z) =
Hypot(RE(z),IM(z))
.