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www.eeworm.com/read/432144/8623946
c 1.8 复系数多项式相除 cpdv.c
/*****************************************************
1.8 复系数多项式相除，计算P被Q除得的商多项式S(z)和余多项式R(z)
*****************************************************/
#include "math.h"
void cpdv(pr,pi,m,qr,qi,n
www.eeworm.com/read/387887/8649465
m p3_1.m
% Program P3_1
% Evaluation of the DTFT
clf;
% Compute the frequency samples of the DTFT
w = -4*pi:8*pi/511:4*pi;
num = [2 1];den = [1 -0.6];
h = freqz(num, den, w);
% Plot the DTFT
subplot(2
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c 1cpdv.c
#include "math.h"
void cpdv(pr,pi,m,qr,qi,n,sr,si,k,rr,ri,l)
int m,n,k,l;
double pr[],pi[],qr[],qi[],sr[],si[],rr[],ri[];
{ int i,j,mm,ll;
double a,b,c,d,u,v;
void cmul(doubl
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m ex2_1.m
x=1+2i;
y=3-sqrt(17);
z=(cos(abs(x+y))-sin(78*pi/180))/(x+abs(y))
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m ex5_8.m
t=0:0.01:2*pi;
x=exp(i*t);
y=[x;2*x;3*x]';
plot(y)
grid on; %加网格线
box on; %加坐标边框
axis equal %坐标轴采用等刻度
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m ex5_17.m
[x,y]=meshgrid(0:0.25:4*pi);
z=sin(x+sin(y))-x/10;
mesh(x,y,z);
axis([0 4*pi 0 4*pi -2.5 1]);
www.eeworm.com/read/287917/8661230
m ex5_15.m
subplot(2,2,1);
ezplot('x^2+y^2-9');axis equal
subplot(2,2,2);
ezplot('x^3+y^3-5*x*y+1/5')
subplot(2,2,3);
ezplot('cos(tan(pi*x))',[ 0,1])
subplot(2,2,4);
ezplot('8*cos(t)','4*sqrt(2)*sin(t)',[
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m ex5_19.m
t=0:pi/20:2*pi;
[x,y,z]= cylinder(2+sin(t),30);
subplot(2,2,1);
surf(x,y,z);
subplot(2,2,2);
[x,y,z]=sphere;
surf(x,y,z);
subplot(2,1,2);
[x,y,z]=peaks(30);
surf(x,y,z);
www.eeworm.com/read/431628/8664576
m ip_07_07.m
% MATLAB script for Illustrative Problem 7.7.
echo on
Tb=1;
f1=1000/Tb;
f2=f1+1/Tb;
phi=pi/4;
N=5000; % number of samples
t=0:Tb/(N-1):Tb;
u1=cos(2*pi*f1*t);
u2=cos(2*pi*f2*t);
% Assu
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m ip_07_07.m
% MATLAB script for Illustrative Problem 7.7.
clear
echo on
Tb=1;
f1=1000/Tb;
f2=f1+1/Tb;
phi=pi/4;
N=5000; % number of samples
t=0:Tb/(N-1):Tb;
u1=cos(2*pi*f1*t);
u2=cos(2*pi*f2*t);