v?Inv

Performs element by element inversion of the vector.

Syntax

FORTRAN:

call vsinv( n, a, y )

call vmsinv( n, a, y, mode )

call vdinv( n, a, y )

call vmdinv( n, a, y, mode )

C:

vsInv( n, a, y );

vmsInv( n, a, y, mode );

vdInv( n, a, y );

vmdInv( n, a, y, mode );

Include Files

Input Parameters

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 vsinv, vmsinv

DOUBLE PRECISION for vdinv, vmdinv

Fortran 90: REAL, INTENT(IN) for vsinv, vmsinv

DOUBLE PRECISION, INTENT(IN) for vdinv, vmdinv

C: const float* for vsInv, vmsInv

const double* for vdInv, vmdInv

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.

Output Parameters

Name

Type

Description

y

FORTRAN 77: REAL for vsinv, vmsinv

DOUBLE PRECISION for vdinv, vmdinv

Fortran 90: REAL, INTENT(OUT) for vsinv, vmsinv

DOUBLE PRECISION, INTENT(OUT) for vdinv, vmdinv

C: float* for vsInv, vmsInv

double* for vdInv, vmdInv

FORTRAN: Array that specifies the output vector y.

C: Pointer to an array that contains the output vector y.

Description

The v?Inv function performs element by element inversion of the vector.

Special Values for Real Function v?Inv(x)
Argument Result VML Error Status Exception
+0 + VML_STATUS_SING ZERODIVIDE
-0 - VML_STATUS_SING ZERODIVIDE
+ +0    
- -0    
QNAN QNAN    
SNAN QNAN   INVALID

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