v?Log10

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 10/15/2026

Version

Public

v?Log10

vsLog10 vmsLog10 vdLog10 vmdLog10 vcLog10 vmcLog10 vzLog10 vmzLog10 Computes the base 10 logarithm of vector elements.

Syntax

call vslog10(n, a, y)
call vslog10i(n, a, inca, y, incy)
call vmslog10(n, a, y, mode)
call vmslog10i(n, a, inca, y, incy, mode)
call vdlog10(n, a, y)
call vdlog10i(n, a, inca, y, incy)
call vmdlog10(n, a, y, mode)
call vmdlog10i(n, a, inca, y, incy, mode)
call vclog10(n, a, y)
call vclog10i(n, a, inca, y, incy)
call vmclog10(n, a, y, mode)
call vmclog10i(n, a, inca, y, incy, mode)
call vzlog10(n, a, y)
call vzlog10i(n, a, inca, y, incy)
call vmzlog10(n, a, y, mode)
call vmzlog10i(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`	Fortran 77: DOUBLE PRECISION for `vdlog10` , `vmdlog10`Fortran 77: COMPLEX for `vclog10` , `vmclog10`Fortran 77: DOUBLE COMPLEX for `vzlog10` , `vmzlog10`Fortran 90: REAL , INTENT(IN) for `vslog10` , `vmslog10`Fortran 90: DOUBLE PRECISION , INTENT(IN) for `vdlog10` , `vmdlog10`Fortran 90: COMPLEX , INTENT(IN) for `vclog10` , `vmclog10`Fortran 90: DOUBLE COMPLEX , INTENT(IN) for `vzlog10` , `vmzlog10`	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 (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`	Fortran 77: DOUBLE PRECISION for `vdlog10` , `vmdlog10`Fortran 77: COMPLEX for `vclog10` , `vmclog10`Fortran 77: DOUBLE COMPLEX for `vzlog10` , `vmzlog10`Fortran 90: REAL , INTENT(OUT) for `vslog10` , `vmslog10`Fortran 90: DOUBLE PRECISION , INTENT(OUT) for `vdlog10` , `vmdlog10`Fortran 90: COMPLEX , INTENT(OUT) for `vclog10` , `vmclog10`Fortran 90: DOUBLE COMPLEX , INTENT(OUT) for `vzlog10` , `vmzlog10`	Array that specifies the output vector `y` .

Description

The v?Log10 function computes the base 10 logarithm of vector elements.

Special Values for Real Function v?Log10(x)

Argument	Result	VM Error Status	Exception
+1	+0
X < +0	QNAN	VML_STATUS_ERRDOM	INVALID
+0	∞	VML_STATUS_SING	ZERODIVIDE
-0	∞	VML_STATUS_SING	ZERODIVIDE
∞	QNAN	VML_STATUS_ERRDOM	INVALID
∞	∞
QNAN	QNAN
SNAN	QNAN		INVALID

See Special Value Notations for the conventions used in the table below.

Special Values for Complex Function v?Log10(z)

RE(z) i · IM(z)	∞	-X	-0	+0	+X	∞	NAN
+i · ∞							∞ +i · QNAN INVALID
+i · Y						∞ +i · 0	QNAN+i · QNAN INVALID
+i · 0			ZERODIVIDE	∞ +i · 0 ZERODIVIDE		∞ +i · 0	QNAN+i · QNAN INVALID
-i · 0			ZERODIVIDE	∞ -i · 0 ZERODIVIDE		∞ -i · 0	QNAN-i · QNAN INVALID
-i · Y						∞ -i · 0	QNAN+i · QNAN INVALID
-i · ∞							∞ +i · QNAN
+i · NAN	∞ +i · QNAN	QNAN+i · QNAN INVALID	QNAN+i · QNAN INVALID	QNAN+i · QNAN INVALID	QNAN+i · QNAN INVALID	∞ +i · QNAN	QNAN+i · QNAN INVALID