Visible to Intel only — GUID: GUID-E1FF8B8B-8410-47F9-AE9F-3B019DD37481
Visible to Intel only — GUID: GUID-E1FF8B8B-8410-47F9-AE9F-3B019DD37481
Sqr
Performs element by element squaring of the vector.
Syntax
IppStatus ippsSqr_32f_A24 (const Ipp32f* pSrc, Ipp32f* pDst, Ipp32s len);
IppStatus ippsSqr_64f_A53 (const Ipp64f* pSrc, Ipp64f* pDst, Ipp32s len);
Include Files
ippvm.h
Domain Dependencies
Headers: ippcore.h
Libraries: ippcore.lib
Parameters
pSrc |
Pointer to the source vector. |
pDst |
Pointer to the destination vector. |
len |
Number of elements in the vectors. |
Description
This function performs element by element squaring of the vector pSrc, and stores the result in the corresponding element of pDst.
For single precision data:
function flavor ippsSqr_32f_A24 guarantees 24 correctly rounded bits of significand, including the implied bit, with the maximum guaranteed error within 1 ulp.
For double precision data:
function flavor ippsSqr_64f_A53 guarantees 53 correctly rounded bits of significand, including the implied bit, with the maximum guaranteed error within 1 ulp.
The computation is performed as follows:
pDst[n] = (pSrc[n])2, 0 ≤ n < len.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when pSrc or pDst pointer is NULL. |
ippStsSizeErr |
Indicates an error when len is less than or equal to 0. |
Example
The example below shows how to use the function ippsSqr.
IppStatus ippsSqr_32f_A24_sample(void) { const Ipp32f x[4] = {+4.885, -0.543, -3.809, -4.953}; Ipp32f y[4]; IppStatus st = ippsSqr_32f_A24( x, y, 4 ); printf(" ippsSqr_32f_A24:\n"); printf(" x = %+.3f %+.3f %+.3f %+.3f \n", x[0], x[1], x[2], x[3]); printf(" y = %+.3f %+.3f %+.3f %+.3f \n", y[0], y[1], y[2], y[3]); return st; }
Output:
ippsSqr_32f_A24: x = +4.885 -0.543 -3.809 -4.953 y = +23.863 +0.295 +14.508 +24.532