v?Log1p
v?Log1p
Computes a natural logarithm of vector elements that are increased by 1.
Syntax
vsLog1p
(
n
,
a
,
y
)
;
vsLog1pI(n, a, inca, y, incy);
vmsLog1p
(
n
,
a
,
y
,
mode
)
;
vmsLog1pI(n, a, inca, y, incy, mode);
vdLog1p
(
n
,
a
,
y
)
;
vdLog1pI(n, a, inca, y, incy);
vmdLog1p
(
n
,
a
,
y
,
mode
)
;
vmdLog1pI(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 vsLog1p , vmsLog1p const double* for vdLog1p , vmdLog1p | 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 vsLog1p , vmsLog1p double* for vdLog1p , vmdLog1p | Pointer to an array that contains the output vector y . |
Description
The
v?Log1p
function computes a natural logarithm of vector elements that are increased by 1.Argument | Result | VM Error Status | Exception |
|---|---|---|---|
-1 | - ∞ | VML_STATUS_SING | ZERODIVIDE |
X <
-1 | QNAN | VML_STATUS_ERRDOM | INVALID |
+0 | +0 | ||
-0 | -0 | ||
- ∞ | QNAN | VML_STATUS_ERRDOM | INVALID |
+ ∞ | + ∞ | ||
QNAN | QNAN | ||
SNAN | QNAN | INVALID |