Developer Reference

  • 0.10
  • 10/21/2020
  • Public Content
Contents

v?SinCos

Computes sine and cosine of vector elements.

Syntax

vsSinCos
(
n
,
a
,
y
,
z
)
;
vsSinCosI(n, a, inca, y, incy, z, incz);
vmsSinCos
(
n
,
a
,
y
,
z
,
mode
)
;
vmsSinCosI(n, a, inca, y, incy, z, incz, mode);
vdSinCos
(
n
,
a
,
y
,
z
)
;
vdSinCosI(n, a, inca, y, incy, z, incz);
vmdSinCos
(
n
,
a
,
y
,
z
,
mode
)
;
vmdSinCosI(n, a, inca, y, incy, z, incz, 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
vsSinCos
,
vmsSinCos
const double*
for
vdSinCos
,
vmdSinCos
Pointer to an array that contains the input vector
a
.
inca
,
incy
,
incz
const MKL_INT
Specifies increments for the elements of
a
,
y
, and
z
.
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
,
z
float*
for
vsSinCos
,
vmsSinCos
double*
for
vdSinCos
,
vmdSinCos
Pointers to arrays that contain the output vectors
y
(for sinevalues) and
z
(for cosine values).
Description
The function computes sine and cosine of vector elements.
Note that arguments
abs(
a
[i]) ≤ 2
13
and
abs(
a
[i]) ≤ 2
16
for single and double precisions respectively are called fast computational path. These are trigonometric function arguments for which VM provides the best possible performance. Avoid arguments that do not belong to the fast computational path in the VM High Accuracy (HA) and Low Accuracy (LA) functions. Alternatively, you can use VM Enhanced Performance (EP) functions that are fast on the entire function domain. However, these functions provide less accuracy.
Special Values for Real Function
v?SinCos(x)
Argument
Result 1
Result 2
VM Error Status
Exception
+0
+0
+1
 
 
-0
-0
+1
 
 
+
QNAN
QNAN
VML_STATUS_ERRDOM
INVALID
-
QNAN
QNAN
VML_STATUS_ERRDOM
INVALID
QNAN
QNAN
QNAN
 
 
SNAN
QNAN
QNAN
 
INVALID
Specifications for special values of the complex functions are defined according to the following formula
Sin(z) = -i*Sinh(i*z)
.
Optimization Notice
Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.
Notice revision #20110804
This notice covers the following instruction sets: SSE2, SSE4.2, AVX2, AVX-512.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserverd for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804