v?Erf

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 3/31/2023

Version

Public

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Visible to Intel only — GUID: GUID-662606CB-E909-4F17-8118-32A1A3758EA8

Computes the error function value of vector elements.

Syntax

call vserf( n, a, y )

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

call vmserf( n, a, y, mode )

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

call vderf( n, a, y )

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

call vmderf( n, a, y, mode )

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

Include Files

Input Parameters

Name	Type	Description
n	INTEGER, INTENT(IN)	Specifies the number of elements to be calculated.
a	DOUBLE PRECISION for vderf, vmderf REAL, INTENT(IN) for vserf, vmserf DOUBLE PRECISION, INTENT(IN) for vderf, vmderf	Array, 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 vderf, vmderf REAL, INTENT(OUT) for vserf, vmserf DOUBLE PRECISION, INTENT(OUT) for vderf, vmderf	Array, specifies the output vector y.

Name

Type

Description

DOUBLE PRECISION for vderf, vmderf

REAL, INTENT(OUT) for vserf, vmserf

DOUBLE PRECISION, INTENT(OUT) for vderf, vmderf

Array, specifies the output vector y.

Description

The Erf function computes the error function values for elements of the input vector a and writes them to the output vector y.

The error function is defined as given by: