Intel® Math Kernel Library 2019 Developer Reference - Fortran
Computes the inverse sine of vector elements divided by π.
call vsasinpi (n, a, y)
call vmsasinpi (n, a, y, mode)
call vdasinpi (n, a, y)
call vmdasinpi (n, a, y, mode)
Name |
Type |
Description |
|---|---|---|
n |
INTEGER |
Specifies the number of elements to be calculated. |
a |
REAL for vsasinpi REAL for vmsasinpi DOUBLE PRECISION for vdasinpi DOUBLE PRECISION for vmdasinpi |
Pointer to the array containing the input vector a. |
mode |
INTEGER (KIND=8) |
Overrides the global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Name |
Type |
Description |
|---|---|---|
y |
REAL for vsasinpi REAL for vmsasinpi DOUBLE PRECISION for vdasinpi DOUBLE PRECISION for vmdasinpi |
Pointer to an array containing the output vector y. |
The v?Asinpi function computes the inverse sine of vector elements divided by π. For an argument x, the function computes asin(x)/π.
| Argument | Result | VM Error Status | Exception |
|---|---|---|---|
| +0 | +0 | ||
| -0 | -0 | ||
| +1 | +1/2 | ||
| -1 | -1/2 | ||
| |x| > 1 | QNAN | VML_STATUS_ERRDOM | INVALID |
| +∞ | QNAN | VML_STATUS_ERRDOM | INVALID |
| -∞ | QNAN | VML_STATUS_ERRDOM | INVALID |
| QNAN | QNAN | ||
| SNAN | QNAN | INVALID |