CxLinEv1D

int CxLinEv1D (double arrayXReal[], double arrayXImg[], int numberOfElements, double aReal, double aImg, double bReal, double bImg, double outputReal[], double outputImg[]);

Purpose

Performs a linear evaluation of a complex 1D array. CxLinEv1D obtains the element of the resulting complex array using the following formulas:

outputReali = aReal × arrayXReali — aImg × arrayXImgi + bReal

outputImgi = aReal × arrayXImgi + aImg × arrayXReali + bImg

CxLinEv1D can perform the operations in place; that is, the input and output complex arrays can be the same.

Parameters

Input
Name Type Description
arrayXReal double-precision array Real part of the complex array used as the basis for the linear evaluation.
arrayXImg double-precision array Imaginary part of the complex array used as the basis for the linear evaluation.
numberOfElements integer Number of elements to evaluate.
aReal double-precision Real part of the multiplicative constant used in the linear evaluation of the input array.

Default Value: 1.0.
aImg double-precision Imaginary part of the multiplicative constant used in the linear evaluation of the input array.

Default Value: 1.0.
bReal double-precision Real part of the additive constant used in the linear evaluation of the input array.

Default Value: 0.0.
bImg double-precision Imaginary part of the additive constant used in the linear evaluation of the input array.

Default Value: 0.0.
Output
Name Type Description
outputReal double-precision array Real part of the result of the linear evaluation of the input array.
outputImg double-precision array Imaginary part of the result of the linear evaluation of the input array.

Return Value

Name Type Description
status AnalysisLibErrType A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants.