Introduction - If you have any usage issues, please Google them yourself
Draw the real part of the spectrum of x[n], the imaginary part of spectrum of x[n], the real part of the spectrum of the even part, the imaginary part of the spectrum of the even part, the real part of the spectrum of the odd part, and the imaginary part of the spectrum of the odd part; The arrangement is as shown in the figure;
(3) The abscissa of the six graphs is normalized to pi and the display range is set to: -1~1
The y-coordinate display range of 6 maps: min~max