v?Log10

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 4/28/2026

Version

Public

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

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)

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.

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` .

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