SinCos
SinCos
Computes sine and cosine of each vector element.
Syntax
IppStatus ippsSinCos_32f_A11 (const Ipp32f*
pSrc
, Ipp32f*
pDst1
, Ipp32f*
pDst2
, Ipp32s
len
);
IppStatus ippsSinCos_32f_A21 (const Ipp32f*
pSrc
, Ipp32f*
pDst1
, Ipp32f*
pDst2
, Ipp32s
len
);
IppStatus ippsSinCos_32f_A24 (const Ipp32f*
pSrc
, Ipp32f*
pDst1
, Ipp32f*
pDst2
, Ipp32s
len
);
IppStatus ippsSinCos_64f_A26 (const Ipp64f*
pSrc
, Ipp64f*
pDst1
, Ipp64f*
pDst2
, Ipp32s
len
);
IppStatus ippsSinCos_64f_A50 (const Ipp64f*
pSrc
, Ipp64f*
pDst1
, Ipp64f*
pDst2
, Ipp32s
len
);
IppStatus ippsSinCos_64f_A53 (const Ipp64f*
pSrc
, Ipp64f*
pDst1
, Ipp64f*
pDst2
, Ipp32s
len
);
Include Files
ippvm.h
Domain Dependencies
Headers:
ippcore.h
Libraries:
ippcore.lib
Parameters
- pSrc
- Pointer to the first source vector.
- pDst1
- Pointer to the destination vector for sine values.
- pDst2
- Pointer to the destination vector for cosine values.
- len
- Number of elements in the vectors.
Description
This function computes sine of each element of
pSrc
and stores the result in the corresponding element of
pDst1
; computes cosine of each element of
pSrc
and stores the result in the corresponding element of
pDst2
.
For single precision data:
function flavor
ippsSinCos_32f_A11
guarantees 11 correctly rounded bits of significand, or at least 3 exact decimal digits;
function flavor
ippsSinCos_32f_A21
guarantees 21 correctly rounded bits of significand, or 4 ulps, or about 6 exact decimal digits;
function flavor
ippsSinCos_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
ippsSinCos_64f_A26
guarantees 26 correctly rounded bits of significand, or 6.7E+7 ulps, or approximately 8 exact decimal digits;
function flavor
ippsSinCos_64f_A50
guarantees 50 correctly rounded bits of significand, or 4 ulps, or approximately 15 exact decimal digits;
function flavor
ippsSinCos_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:
pDst1
[n] = sin(
pSrc
[n])
pDst2
[n] = cos(
pSrc
[n])
0 ≤ n <
.
len
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error whenpDst1orpDst2orpSrcpointer 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 of thepSrcelements is equal to± INF.
Example
The example below shows how to use the function
ippsSinCos
.IppStatus ippsSinCos_32f_A21_sample(void)
{
const Ipp32f x[4] = {3857.845, -3939.024, -1468.856, -8592.486};
Ipp32f y1[4];
Ipp32f y2[4];
IppStatus st = ippsSinCos_32f_A21( x, y1, y2, 4 );
printf(" ippsSinCos_32f_A21:\n");
printf(" x = %.3f %.3f %.3f %.3f \n", x[0], x[1], x[2], x[3]);
printf(" y1 = %.3f %.3f %.3f %.3f \n", y1[0], y1[1], y1[2], y1[3]);
printf(" y2 = %.3f %.3f %.3f %.3f \n", y2[0], y2[1], y2[2], y2[3]);
return st;
}
Output results:
ippsSinCos_32f_A21:
x = 3857.845 -3939.024 -1468.856 -8592.486
y1 = -0.031 0.508 0.987 0.228
y2 = 1.000 0.861 0.161 -0.974