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% Program P2_4 modified % Generate the input sequences clf; n = 0:40; D = 10;a = 3.0;b = -2; x = a*cos(2*pi*0.1*n) + b*cos(2*pi*0.4*n); x1 = a*cos(2*pi*0.1*(n-1)) + b*cos(2*pi*0.4*(n-1)); ic = [

% Program P5_4 % Design of Analog Lowpass Filter clf; Fp = 3500;Fs = 4500; Wp = 2*pi*Fp; Ws = 2*pi*Fs; [N, Wn] = buttord(Wp, Ws, 0.5, 30,'s'); [b,a] = butter(N, Wn, 's'); wa = 0:(3*Ws)/511:3*W

function shili05 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例05'); t=0:pi/10:2*pi; [x,y]=meshgrid(t); subplot(2,2,1) plot(sin(t),cos(t)) axis equal sub

function s=lagrange(t,n) for i=1:n h=2*pi/n; x(i)=i*h; end s=0; for i=1:n l=1; for j=1:n if j~=i l=l*(t-x(j))/(x(i)-x(j)); end end s=s+

function shili06 h0=figure('toolbar','none',... 'position',[200 150 450 400],... 'name','实例06'); t=0:pi/10:2*pi; h=plot(t,sin(t)); xlabel('t=0到2\pi','fontsize',16); ylabel('sin(t)','fon

%Programa para comparar aproximaciones clear all close all a=1 mu=1 Io=1 k=2*pi/6 theta=pi/8 y=0 max=100 for n=1:max m(n)=n; r(n)=m(n).*a; %aproximaci髇 1 Aphi=((a^

%Programa para comparar aproximaciones clear all close all a=1 mu=1 Io=1 k=2*pi/6 theta=pi/8 y=0 max=100 for n=1:max m(n)=n; r(n)=m(n).*a; %aproximaci髇 1 Aphi=((a^

% Program 4_1 % Generate the filter coefficients h1 = ones(1,5)/5; h2 = ones(1,14)/14; w = 0:pi/255:pi; % Compute the frequency responses H1 = freqz(h1, 1, w); H2 = freqz(h2, 1, w); % Compute

#include"stdlib.h" #include "stdio.h" #include"math.h" #include"graphics.h" main() { float a=0.4,d=0.8; int n=4; int graphdrv=DETECT; int graphmode; int A=0,B=120; float b,c,r,pi=3.14

#include #include #include #include #include "global.h" #include "mbuf.h" #include "iface.h" #include "pktdrvr.h" #include "netuser.h" #include "pi.h" #