代码搜索结果

% eg 1-6 n=0:50; x=3*cos(0.1*pi*n+pi/3); close all stem(n,x); title('余弦序列'); xlabel('n');ylabel('x(n)');

n=[-1:3]; x=1:5; k=0:500;w=(pi/500)*k; X=x*exp(-j*pi/500.*(n'*k)); magX=abs(X);angX=angle(X); realX=real(X);imagX=imag(X); subplot(2,2,1);plot(w/pi,magX);grid; xlabel('Frequency');ylabel('ampli

% example 12 x=linspace(0,2*pi,30); y=sin(x); z=cos(x); a=2*sin(x).*cos(x); b=sin(x)./(cos(x)+eps); subplot(2,2,1)%选取4个子图中的左上 plot(x,y);axis([0 2*pi -1 1]),title('sin(x)'); subplot(2,2,2)%选取4个

function [Hr,w,d,L]=Hr_Type4(h); M=length(h); L=M/2; d=2*[h(L:-1:1)]; n=[1:1:L];n=n-0.5; w=[0:1:500]'*pi/500; Hr=sin(w*n)*d';

b=1; a=[1,-0.9]; figure(1); zplane(b,a); figure(2); [H,w]=freqz(b,a,100); magH=abs(H);phaH=angle(H); subplot(2,1,1);plot(w/pi,magH);grid; xlabel('freq');ylabel('amp'); subplot(2,1,2);plot(w/p

function [Hr,w,b,L]=Hr_Type2(h); M=length(h); L=M/2; b=2*[h(L:-1:1)]; n=[1:1:L];n=n-0.5; w=[0:1:500]'*pi/500; Hr=cos(w*n)*b';

t=0:pi/20:2*pi; z=sin(t); plot(t,z); set(gca,'YAxisLocation','right'); %设置当前坐标轴的y轴的位置属性为右 xlabel('x'); ylabel('y');

#include "stdio.h" #include "13kfft.c" #include "math.h" main() { int i,j; double pr[64],pi[64],fr[64],fi[64]; for (i=0; i

t=0:pi/20:2*pi; y1=sin(t); y2=cos(t); figh=figure('Position',[30,100,800,350]); axes('GridLineStyle','-.','XLim',[0,2*pi],'YLim',[-1,1]); line('XData',t,'YData',y1,'LineWidth',2); line(t,y2); g

clf; %清除图形窗口中的内容 x=linspace(0,2*pi,20); y=sin(x); axes('Position',[0.2,0.2,0.2,0.7],'GridLineStyle','-.'); plot(y,x); grid on axes('Position',[0.4,0.2,0.5,0.5]); t=0:pi/1