# CxSub1D

AnalysisLibErrType CxSub1D (double arrayXReal[], double arrayXImg[], double arrayYReal[], double arrayYImg[], int numberOfElements, double outputReal[], double outputImg[]);

## Purpose

Subtracts two complex 1D arrays. CxSub1D obtains the element of the resulting complex array using the formulas:

outputReali = arrayXReali – arrayYReali

outputImgi = arrayXImgi – arrayYImgi

CxSub1D 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 array to subtract from.
arrayXImg | double-precision array | Imaginary part of the array to subtract from.
arrayYReal | double-precision array | Real part of the array to subtract.
arrayYImg | double-precision array | Imaginary part of the array to subtract.
numberOfElements | integer | Number of elements to subtract.
Output
Name | Type | Description
outputReal | double-precision array | Real part of result of the complex array subtraction.
outputImg | double-precision array | Imaginary part of the result of the complex array subtraction.

## 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.