Developer Reference

Contents

v?Log10

Computes the base 10 logarithm of vector elements.

Syntax

vsLog10
(
n
,
a
,
y
)
;
vsLog10I(n, a, inca, y, incy);
vmsLog10
(
n
,
a
,
y
,
mode
)
;
vmsLog10I(n, a, inca, y, incy, mode);
vdLog10
(
n
,
a
,
y
)
;
vdLog10I(n, a, inca, y, incy);
vmdLog10
(
n
,
a
,
y
,
mode
)
;
vmdLog10I(n, a, inca, y, incy, mode);
vcLog10
(
n
,
a
,
y
)
;
vcLog10I(n, a, inca, y, incy);
vmcLog10
(
n
,
a
,
y
,
mode
)
;
vmcLog10I(n, a, inca, y, incy, mode);
vzLog10
(
n
,
a
,
y
)
;
vzLog10I(n, a, inca, y, incy);
vmzLog10
(
n
,
a
,
y
,
mode
)
;
vmzLog10I(n, a, inca, y, incy, mode);
Include Files
  • mkl.h
Input Parameters
Name
Type
Description
n
const MKL_INT
Specifies the number of elements to be calculated.
a
const float*
for
vsLog10
,
vmsLog10
const double*
for
vdLog10
,
vmdLog10
const MKL_Complex8*
for
vcLog10
,
vmcLog10
const MKL_Complex16*
for
vzLog10
,
vmzLog10
Pointer to an array that contains the input vector
a
.
inca
,
incy
const MKL_INT
Specifies increments for the elements of
a
and
y
.
mode
const MKL_INT64
Overrides global VM mode setting for this function call. See
vmlSetMode
for possible values and their description.
Output Parameters
Name
Type
Description
y
float*
for
vsLog10
,
vmsLog10
double*
for
vdLog10
,
vmdLog10
MKL_Complex8*
for
vcLog10
,
vmcLog10
MKL_Complex16*
for
vzLog10
,
vmzLog10
Pointer to an array that contains 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
Notes:
  • raises
    INVALID
    exception when real or imaginary part of the argument is
    SNAN

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.