Matlab 6.0图形图像处理所附带的光盘

				% Chapter 05: Example 5.22 Ploting of FFT execution times								%								load fft_time.mat;								top = ceil(max(fft_time));								%n = 1:2048;								subplot								clg								plot(n,fft_time,'.');axis([0,2500,0,50])								xlabel('N');ylabel('Time in Sec.')								title('FFT execution times')								text(2100,top,'o(N*N)')								text(2100,top/2,'o(N*N/2)')								text(2100,top/3,'o(N*N/3)')								text(2100,top/4,'o(N*N/4)')								text(2100,1,'o(N*logN)')