Visible to Intel only — GUID: GUID-58F562CA-EEC3-443E-B0C2-A6C236265C2F
Visible to Intel only — GUID: GUID-58F562CA-EEC3-443E-B0C2-A6C236265C2F
v?Cosd
Computes the cosine of vector elements multiplied by π/180.
Syntax
call vscosd (n, a, y)
call vscosdi(n, a, inca, y, incy)
call vmscosd (n, a, y, mode)
call vmscosdi(n, a, inca, y, incy, mode)
call vdcosd (n, a, y)
call vdcosdi(n, a, inca, y, incy)
call vmdcosd (n, a, y, mode)
call vmdcosdi(n, a, inca, y, incy, mode)
Include Files
- mkl_vml.f90
Input Parameters
Name |
Type |
Description |
---|---|---|
n |
INTEGER |
Specifies the number of elements to be calculated. |
a |
REAL for vscosd REAL for vmscosd DOUBLE PRECISION for vdcosd DOUBLE PRECISION for vmdcosd |
Pointer to the array containing the input vector a. |
inca, incy |
INTEGER, INTENT(IN) |
Specifies increments for the elements of a and y. |
mode |
INTEGER (KIND=8) |
Overrides the global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Output Parameters
Name |
Type |
Description |
---|---|---|
y |
REAL for vscosd REAL for vmscosd DOUBLE PRECISION for vdcosd DOUBLE PRECISION for vmdcosd |
Pointer to an array containing the output vector y. |
Description
The v?Cosd function computes the cosine of vector elements multiplied by π/180. For an argument x, the function computes cos(π*x/180).
Argument | Result | VM Error Status | Exception |
---|---|---|---|
+0 | +1 | ||
-0 | +1 | ||
±∞ | QNAN | VML_STATUS_ERRDOM | INVALID |
QNAN | QNAN | ||
SNAN | QNAN | INVALID |
Application Notes
If arguments abs(ai) ≤ 224 for single precision or abs(ai ) ≤ 252 for double precision, they belong to the fast computational path: arguments for which VM provides the best possible performance. Avoid arguments with do not belong to the fast computational path in VM High Accuracy (HA) or Low Accuracy (LA) functions. For arguments which do not belong to the fast computational path you can use VM Enhanced Performance (EP) functions, which are fast on the entire function domain. However, these functions provide lower accuracy.