Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 7/13/2023
Public

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v?Frac

Computes a signed fractional part for each vector element.

Syntax

call vsfrac( n, a, y )

call vsfraci(n, a, inca, y, incy)

call vmsfrac( n, a, y, mode )

call vmsfraci(n, a, inca, y, incy, mode)

call vdfrac( n, a, y )

call vdfraci(n, a, inca, y, incy)

call vmdfrac( n, a, y, mode )

call vmdfraci(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 vdfrac, vmdfrac

REAL, INTENT(IN) for vsfrac, vmsfrac

DOUBLE PRECISION, INTENT(IN) for vdfrac, vmdfrac

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 vdfrac, vmdfrac

REAL, INTENT(OUT) for vsfrac, vmsfrac

DOUBLE PRECISION, INTENT(OUT) for vdfrac, vmdfrac

Array that specifies the output vector y.

Description

The function computes a signed fractional part for each vector element.



Special Values for Real Function v?Frac(x)
Argument Result Exception
+0 +0  
-0 -0  
+ +0  
- -0  
SNAN QNAN INVALID
QNAN QNAN