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1、1、>>n=0:10;x=[0,1,0,0,0,0,0,0,0,0,0];stem(n,x);gridonline([0,10],[0,0],'color','r');xlabel('n'),ylabel('delta[n]');axis([0,10,-2,2]);>>2、>>n=0:10;x2=[0,0,0,0,1,1,1,1,1,1,1];stem(n,x2);gridon;line([0,10],[0,0],'color','r');xlabel('n'),ylabel('u[n]');axis([0,10,-2,2]);>>3、>>n=0:9;x3=[ones
2、(1,8),0,0];stem(n,x3);gridon;line([0,9],[0,0],'color','r');xlabel('n'),ylabel('R8[n]');axis([0,9,-2,2]);4、>>A=3;n=-10:30;x4=A*sin(pi/5*n+pi/3);stem(n,x4);gridon;line([-10,30],[0,0],'color','r');line([0,0],[-5,5],'color','r');xlabel('n'),ylabel('sin[n]');axis([-10,30,-5,5]);>>5、>>n=0:9;x
3、=[1,2,3,4,5,0,0,0,0,0];stem(n,x);gridonline([0,9],[0,0],'color','r');xlabel('n'),ylabel('delta[n]');axis([0,9,-2,6]);>>6、>>n=0:9;x=[1,2,1,2,0,0,0,0,0,0];stem(n,x);gridonline([0,9],[0,0],'color','r');xlabel('n'),ylabel('delta[n]');axis([0,9,-2,3]);>>7、>>n=0:9;x=[1,2,1,2,0,0,0,0,0,0];stem
4、(n,x);gridonline([0,9],[0,0],'color','r');xlabel('n'),ylabel('delta[n]');axis([0,9,-2,3]);>>>>x=[1,2,3,4,5,0,0,0,0,0];m=2;n1=0:(length(x)-1);n2=0:(length(x)-1+m);x1=zeros(1,m+length(x));fork=m+1:m+length(x)x1(k)=x(k-m);end;subplot(2,1,1),stem(n1,x);axis([-2,11,0,5]);grid;xlabel('n'),yla
5、bel('x[n]');subplot(2,1,2),stem(n2,x1);axis([-2,11,0,5]);grid;xlabel('n'),ylabel('x1[n]');>>x=[1,2,1,2,0,0,0,0,0,0];m=2;n1=0:(length(x)-1);n2=0:(length(x)-1+m);x1=zeros(1,m+length(x));fork=m+1:m+length(x)x1(k)=x(k-m);end;subplot(2,1,1),stem(n1,x);axis([-2,11,0,3]);grid;xlabel('n'),ylabe
6、l('x[n]');subplot(2,1,2),stem(n2,x1);axis([-2,11,0,3]);grid;xlabel('n'),ylabel('x1[n]');>>>>x=[1,2,3,4,5,0,0,0,0,0];y=fliplr(x);n1=0:9;n2=-fliplr(n1);subplot(2,1,1),stem(n1,x);axis([-10,10,-1,5]);grid;xlabel('n'),ylabel('x[n]');subplot(2,1,2),stem(n2,y);axis([-10,10,-1,5]);grid;xlabel('
7、n'),ylabel('y[n]');>>>>x=[1,2,1,2,0,0,0,0,0,0];y=fliplr(x);n1=0:9;n2=-fliplr(n1);subplot(2,1,1),stem(n1,x);axis([-10,10,-1,2]);grid;xlabel('n'),ylabel('x[n]');subplot(2,1,2),stem(n2,y);axis([-10,10,-1,2]);grid;xlabel('n'),ylabel('y[n]');
