Pow
Pow
Raises each element of the first vector to the power of
corresponding element of the second vector.
Syntax
IppStatus ippsPow_32f_A11 (const Ipp32f*
pSrc1
, const Ipp32f*
pSrc2
, Ipp32f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_32f_A21 (const Ipp32f*
pSrc1
, const Ipp32f*
pSrc2
, Ipp32f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_32f_A24 (const Ipp32f*
pSrc1
, const Ipp32f*
pSrc2
, Ipp32f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64f_A26 (const Ipp64f*
pSrc1
, const Ipp64f*
pSrc2
, Ipp64f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64f_A50 (const Ipp64f*
pSrc1
, const Ipp64f*
pSrc2
, Ipp64f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64f_A53 (const Ipp64f*
pSrc1
, const Ipp64f*
pSrc2
, Ipp64f*
pDst
, Ipp32s
len
);
IppStatus ippsPow_32fc_A11 (const
Ipp32fc*
pSrc1
, const Ipp32fc*
pSrc2
, Ipp32fc*
pDst
, Ipp32s
len
);
IppStatus ippsPow_32fc_A21 (const
Ipp32fc*
pSrc1
, const Ipp32fc*
pSrc2
, Ipp32fc*
pDst
, Ipp32s
len
);
IppStatus ippsPow_32fc_A24 (const
Ipp32fc*
pSrc1
, const Ipp32fc*
pSrc2
, Ipp32fc*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64fc_A26 (const
Ipp64fc*
pSrc1
, const Ipp64fc*
pSrc2
, Ipp64fc*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64fc_A50 (const
Ipp64fc*
pSrc1
, const Ipp64fc*
pSrc2
, Ipp64fc*
pDst
, Ipp32s
len
);
IppStatus ippsPow_64fc_A53 (const
Ipp64fc*
pSrc1
, const Ipp64fc*
pSrc2
, Ipp64fc*
pDst
, Ipp32s
len
);
Include Files
ippvm.h
Domain Dependencies
Headers:
ippcore.h
Libraries:
ippcore.lib
Parameters
- pSrc1
- Pointer to the first source vector.
- pSrc2
- Pointer to the second source vector.
- pDst
- Pointer to the destination vector.
- len
- Number of elements in the vectors.
Description
This function raises each element of vector
pSrc1
to the power of the corresponding element of the vector
pSrc2
and stores the
result in the corresponding element of pDst
.For single precision data:
function flavors
ippsPow_32f_A11
and ippsPow_32cf_A11
guarantee 11 correctly rounded bits of significand,
or at least 3 exact decimal digits;function flavors
ippsPow_32f_A21
and ippsPow_32fc_A21
guarantee 21 correctly rounded bits of significand,
or 4 ulps, or about 6 exact decimal digits;function flavors
ippsPow_32f_A24
and ippsPow_32fc_A24
guarantee 24 correctly rounded bits of significand,
including the implied bit, with the maximum guaranteed error within 1 ulp.For double precision data:
function flavors
ippsPow_64f_A26
and ippsPow_64fc_A26
guarantee 26 correctly rounded bits of significand,
or 6.7E+7 ulps, or approximately 8 exact decimal digits;function flavors
ippsPow_64f_A50
and ippsPow_64fc_A50
guarantee 50 correctly rounded bits of significand,
or 4 ulps, or approximately 15 exact decimal digits;function flavors
ippsPow_64f_A53
and ippsPow_64fc_A53
guarantee 53 correctly rounded bits of significand,
including the implied bit, with the maximum guaranteed error within 1 ulp.Note that for
ippsPow
complex functions there may be argument ranges where the
accuracy specification does not hold.The computation is performed as follows:
pDst
[n] = (pSrc1
[n])pSrc2
[n]
0 ≤ n <
.len
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error whenpSrc1orpSrc2orpDstpointer isNULL.
- ippStsSizeErr
- Indicates an error whenlenis less than or equal to 0.
- IppStsDomain
- In real functions, indicates a warning that the argument is out of the function domain, that is, at least one pair of the source elements meets the following condition: element ofpSrc1is finite, less than 0, and element ofpSrc2is finite, non-integer.
- IppStsSingularity
- In real functions, indicates a warning that the argument is the singularity point, that is, at least one pair of the elements is as follows: element ofpSrc1is equal to 0, and element ofpSrc2is integer and less than 0.
Example
The example below shows how to use the function
ippsPow
. IppStatus ippsPow_32f_A21_sample(void)
{
const Ipp32f x1[4] = {0.483, 0.565, 0.776, 0.252};
const Ipp32f x2[4] = {0.823, 0.991, 0.411, 0.692};
Ipp32f y[4];
IppStatus st = ippsPow_32f_A21( x1, x2, y, 4 );
printf(" ippsPow_32f_A21:\n");
printf(" x1 = %.3f %.3f %.3f %.3f \n", x1[0], x1[1], x1[2], x1[3]);
printf(" x2 = %.3f %.3f %.3f %.3f \n", x2[0], x2[1], x2[2], x2[3]);
printf(" y = %.3f %.3f %.3f %.3f \n", y[0], y[1], y[2], y[3]);
return st;
}
Output results:
ippsPow_32f_A21:
x1 = 0.483 0.565 0.776 0.252
x2 = 0.823 0.991 0.411 0.692
y = 0.549 0.568 0.901 0.386