Contents

v?Hypot

Computes a square root of sum of two squared elements.

Syntax

vsHypot
(
n
,
a
,
b
,
y
)
;
vmsHypot
(
n
,
a
,
b
,
y
,
mode
)
;
vdHypot
(
n
,
a
,
b
,
y
)
;
vmdHypot
(
n
,
a
,
b
,
y
,
mode
)
;
Include Files
  • mkl.h
Input Parameters
Name
Type
Description
n
const MKL_INT
Number of elements to be calculated.
a
,
b
const float*
for
vsHypot
,
vmsHypot
const double*
for
vdHypot
,
vmdHypot
Pointers to arrays that contain the input vectors
a
and
b
.
mode
const MKL_INT64
Overrides global VM mode setting for this function call. See
vmlSetMode
for possible values and their description.
Precision Overflow Thresholds for
Hypot
Function
Data Type
Threshold Limitations on Input Parameters
single precision
abs(
a
[i]) < sqrt(FLT_MAX)
abs(
b
[i]) < sqrt(FLT_MAX)
double precision
abs(
a
[i]) < sqrt(DBL_MAX)
abs(
b
[i]) < sqrt(DBL_MAX)
Output Parameters
Name
Type
Description
y
float*
for
vsHypot
,
vmsHypot
double*
for
vdHypot
,
vmdHypot
Pointer to an array that contains the output vector
y
.
Description
The function
v?Hypot
computes a square root of sum of two squared elements.
Special values for Real Function
v?Hypot(x)
Argument 1
Argument 2
Result
Exception
+0
+0
+0
 
-0
-0
+0
 
+
any value
+
 
any value
+
+
 
SNAN
any value
QNAN
INVALID
any value
SNAN
QNAN
INVALID
QNAN
any value
QNAN
 
any value
QNAN
QNAN
 
1

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reservered for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804