v?Remainder

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 10/15/2026

Version

Public

v?Remainder

Performs element by element computation of the remainder function on the elements of vector a and the corresponding elements of vector b .

Syntax

call vsremainder(n, a, b, y)
call vsremainderi(n, a, inca, b, incb, y, incy)
call vmsremainder(n, a, b, y, mode)
call vmsremainderi(n, a, inca, b, incb, y, incy, mode)
call vdremainder(n, a, b, y)
call vdremainderi(n, a, inca, b, incb, y, incy)
call vmdremainder(n, a, b, y, mode)
call vmdremainderi(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, b`	REAL for `vsRemainder` REAL for `vmsRemainder` DOUBLE PRECISION for `vdRemainder` DOUBLE PRECISION for `vmdRemainder`	Pointers to arrays containing the input vectors `a` and `b` .
`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 (Sets a new mode for VM functions according to the mode parameter and stores the previous VM mode to oldmode.) for possible values and their description.

Output Parameters

Name	Type	Description
`y`	REAL for `vsRemainder` REAL for `vmsRemainder` DOUBLE PRECISION for `vdRemainder` DOUBLE PRECISION for `vmdRemainder`	Pointer to an array containing the output vector `y` .

Description

Computes the remainder of each element of vector a , with respect to the corresponding elements of vector b : compute the values of n such that

n = a_{i} - n*b_{i}

where n is the integer nearest to the exact value of a_i / b_i . If two integers are equally close to a_i / b_i , n is the even one. If n is zero, it has the same sign as a_i .

Special values for Real Function v?Remainder(x, y)

Argument 1	Argument 2	Result	VM Error Status	Exception
`x` not NAN	± 0	NAN	VML_STATUS_DOM	INVALID
±∞	`y` not NAN	NAN		INVALID
± 0	`y` ≠ 0, not NAN	± 0
`x` finite	±∞	`x`		UNDERFLOW if `x` is subnormal
NAN	`y`	NAN
`x`	NAN	NAN

NOTE:

If element i in the result of v?Remainder is 0, its sign is that of a_i .

NOTE:

Div
Fmod

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Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

v?Remainder

Syntax

Include Files

Input Parameters

Output Parameters

Description