Developer Reference for Intel® oneAPI Math Kernel Library for Fortran
A newer version of this document is available. Customers should click here to go to the newest version.
v?Inv
Performs element by element inversion of the vector.
Syntax
call vsinv( n, a, y )
call vsinvi(n, a, inca, y, incy)
call vmsinv( n, a, y, mode )
call vmsinvi(n, a, inca, y, incy, mode)
call vdinv( n, a, y )
call vdinvi(n, a, inca, y, incy)
call vmdinv( n, a, y, mode )
call vmdinvi(n, a, inca, y, incy, mode)
Include Files
- mkl_vml.f90
Input Parameters
Name |
Type |
Description |
---|---|---|
n |
INTEGER, INTENT(IN) |
Specifies the number of elements to be calculated. |
a |
DOUBLE PRECISION for vdinv, vmdinv REAL, INTENT(IN) for vsinv, vmsinv DOUBLE PRECISION, INTENT(IN) for vdinv, vmdinv |
Array that specifies the input vector a. |
inca, incy |
INTEGER, INTENT(IN) |
Specifies increments for the elements of a and y. |
mode |
INTEGER(KIND=8), INTENT(IN) |
Overrides global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Output Parameters
Name |
Type |
Description |
---|---|---|
y |
DOUBLE PRECISION for vdinv, vmdinv REAL, INTENT(OUT) for vsinv, vmsinv DOUBLE PRECISION, INTENT(OUT) for vdinv, vmdinv |
Array that specifies the output vector y. |
Description
The v?Inv function performs element by element inversion of the vector.
Argument | Result | VM Error Status | Exception |
---|---|---|---|
+0 | +∞ | VML_STATUS_SING | ZERODIVIDE |
-0 | -∞ | VML_STATUS_SING | ZERODIVIDE |
+∞ | +0 | ||
-∞ | -0 | ||
QNAN | QNAN | ||
SNAN | QNAN | INVALID |