v?CopySign

Returns vector of elements of one argument with signs changed to match other argument elements.

Syntax

call vscopysign (n, a, y)

call vscopysigni(n, a, inca, b, incb, y, incy)

call vmscopysign (n, a, y, mode)

call vmscopysigni(n, a, inca, b, incb, y, incy, mode)

call vdcopysign (n, a, y)

call vdcopysigni(n, a, inca, b, incb, y, incy)

call vmdcopysign (n, a, y, mode)

call vmdcopysigni(n, a, inca, b, incb, y, incy, mode)

Include Files

mkl_vml.f90

Input Parameters

Name	Type	Description
`n`	INTEGER	Specifies the number of elements to be calculated.
`a`	REAL for vscopysign REAL for vmscopysign DOUBLE PRECISION for vdcopysign DOUBLE PRECISION for vmdcopysign	Pointer to the array containing the input vector `a`.
inca, incb, incy	INTEGER, INTENT(IN)	Specifies increments for the elements of `a`, `b`, and `y`.
`mode`	INTEGER (KIND=8)	Overrides the global VM mode setting for this function call. See vmlSetMode for possible values and their description.

Output Parameters

Name	Type	Description
`y`	REAL for vscopysign REAL for vmscopysign DOUBLE PRECISION for vdcopysign DOUBLE PRECISION for vmdcopysign	Pointer to an array containing the output vector `y`.

Name

Type

Description

y

REAL for vscopysign

REAL for vmscopysign

DOUBLE PRECISION for vdcopysign

DOUBLE PRECISION for vmdcopysign

Pointer to an array containing the output vector y.

Description

The v?CopySign function returns the first vector argument elements with the sign changed to match the sign of the second vector argument's corresponding elements.