Computes an inverse square root of vector elements.
FORTRAN:
call vsinvsqrt( n, a, y )
call vmsinvsqrt( n, a, y, mode )
call vdinvsqrt( n, a, y )
call vmdinvsqrt( n, a, y, mode )
C:
vsInvSqrt( n, a, y );
vmsInvSqrt( n, a, y, mode );
vdInvSqrt( n, a, y );
vmdInvSqrt( n, a, y, mode );
Name |
Type |
Description |
|---|---|---|
n |
FORTRAN 77: INTEGER Fortran 90: INTEGER, INTENT(IN) C: const int |
Specifies the number of elements to be calculated. |
a |
FORTRAN 77: REAL for vsinvsqrt, vmsinvsqrt DOUBLE PRECISION for vdinvsqrt, vmdinvsqrt Fortran 90: REAL, INTENT(IN) for vsinvsqrt, vmsinvsqrt DOUBLE PRECISION, INTENT(IN) for vdinvsqrt, vmdinvsqrt C: const float* for vsInvSqrt, vmsInvSqrt const double* for vdInvSqrt, vmdInvSqrt |
FORTRAN: Array that specifies the input vector a. C: Pointer to an array that contains the input vector a. |
mode |
FORTRAN 77: INTEGER*8 Fortran 90: INTEGER(KIND=8), INTENT(IN) C: const MKL_INT64 |
Overrides global VML mode setting for this function call. See vmlSetMode for possible values and their description. |
Name |
Type |
Description |
|---|---|---|
y |
FORTRAN 77: REAL for vsinvsqrt, vmsinvsqrt DOUBLE PRECISION for vdinvsqrt, vmdinvsqrt Fortran 90: REAL, INTENT(OUT) for vsinvsqrt, vmsinvsqrt DOUBLE PRECISION, INTENT(OUT) for vdinvsqrt, vmdinvsqrt C: float* for vsInvSqrt, vmsInvSqrt double* for vdInvSqrt, vmdInvSqrt |
FORTRAN: Array that specifies the output vector y. C: Pointer to an array that contains the output vector y. |
The v?InvSqrt function computes an inverse square root of vector elements.