Filter
Top Products
Analysis Library Chapter 3
LabWindows/CVI Standard Libraries 3-12 © National Instruments Corporation
CxMul
int
status
=
CxMul
(double
xReal
, double
xImaginary
, double
yReal
,
double
yImaginary
, double *
outputReal
,
double *
outputImaginary
);
Purpose
Multiplies two complex numbers. The function obtains the resulting complex number by using
the following formulas.
zr = xr*yr - xi*yi
zi = xr*yi + xi*yr
Parameters
Input
xReal
double-precision Real part of x.
xImaginary
double-precision Imaginary part of x.
yReal
double-precision Real part of y.
yImaginary
double-precision Imaginary part of y.
Output
outputReal
double-precision Real part of z.
outputImaginary
double-precision Imaginary part of z.
Return Value
status
integer Refer to error codes in Table 3-2.
CxMul1D
int
status
=
CxMul1D
(double
arrayXReal
[], double
arrayXImaginary
[],
double
arrayYReal
[], double
arrayYImaginary
[],
int
numberofElements
, double
outputArrayReal
[],
double
outputArrayImaginary
[]);
Purpose
Multiplies two 1D complex arrays. The function obtains the ith element of the resulting complex
array by using the formulas:
zr xr yr xi yi
iiiii
=∗−∗
zi xr yi xi yr
iiiii
=∗+∗