User's Manual

Chapter 3 Analysis Library
© National Instruments Corporation 3-15 LabWindows/CVI Standard Libraries
CxSub1D
int
status
=
CxSub1D
(double
arrayXReal
[], double
arrayXImaginary
[],
double
arrayYReal
[], double
arrayYImaginary
[],
int
numberofElements
, double
outputArrayReal
[],
double
outputArrayImaginary
[]);
Purpose
Subtracts two 1D complex arrays. The function obtains the ith element of the resulting complex
array by using the following formulas.
zr xr yr
iii
=−
zi xi yi
iii
=−
The function performs the operations in place; that is, the input and output complex arrays can be
the same.
Parameters
Input
arrayXReal
double-precision
array
Real part of x.
arrayXImaginary
double-precision
array
Imaginary part of x.
arrayYReal
double-precision
array
Real part of y.
arrayYImaginary
double-precision
array
Imaginary part of y.
numberofElements
integer Number of elements.
Output
outputArrayReal
double-precision
array
Real part of z.
outputArrayImaginary
double-precision
array
Imaginary part of z.
Return Value
status
integer Refer to error codes in
Table 3-2.