Developer Reference

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cblas_?cabs1

Computes absolute value of complex number.

Syntax

float
cblas_scabs1
(
const
void
*z
);
double
cblas_dcabs1
(
const
void
*z
);
Include Files
  • mkl.h
Description
The
?cabs1
is an auxiliary routine for a few BLAS Level 1 routines. This routine performs an operation defined as
res
=|Re(
z
)|+|Im(
z
)|,
where
z
is a scalar, and
res
is a value containing the absolute value of a complex number
z
.
Input Parameters
z
Scalar.
Return Values
The absolute value of a complex number
z
.

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 reserved 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