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E 的代码
e0613.m
x=0:10;y=sin(x);xi=0:.25:10;
% 将插值方法定义为单元数组
strmod={'nearest','linear','spline','cubic'}
% 将X轴标识定义为单元数组
strlb={'(a) method=nearest', '(b) method=linear','(c) method=spline', '(d) m
e0653.m
H_fig=figure %建立图形窗口
set(H_fig,'MenuBar','none');%隐藏标准菜单
set(gcf,'menubar',menubar); %隐藏标准菜单
set(gcf,'menubar','figure'); %恢复标准菜单的显示
e0610.m
x=0:0.01:2*pi;r=3./(((cos(x)).^2).^(1/3)+((sin(x)).^2).^(1/3)).^(3/2);
polar(x,r)
e0637.m
x=-1:0.05:1;y=x;[x,y]=meshgrid(x,y);
z=x.^2+2*y.^2;
colormap(copper);
subplot(1,3,1);surf(x,y,z);title('shading faceted')
subplot(1,3,2);surf(x,y,z);shading flat;title('shading flat')
subplot(1,3
e0632.m
%方法1:
x=-1:0.05:1;y=x; [x,y]=meshgrid(x,y);
z=x.^2-2*y.^2;mesh(x,y,z)
%方法2:
syms x y;f=x^2-2*y^2;
ezmesh(f) %-2 ≤x≤2 ,-2 ≤y≤2 。
%方法3:
ezmesh('x','y','x^2-2*y^2',[-1,1,-1,1]) %-1≤x≤1,-1≤y≤1
e0604.m
figure
x=0:pi/100:2*pi; y=2*sin(2*x)+3*sin(3*x)*i;
subplot(1,2,1),plot(x,y)%绘制复数矩阵的实部部分
title('This is figure of the real part .'); %给图形加上标题
xlabel('x'); %给x轴加标注
ylabel('real(y)'); %给y轴加标注
subpl
e0639.m
[x,y,z]=sphere(50);
m=moviein(30); %建立一个30列大矩阵
for i=1:30
surf(i*x,i*y,i*z) %绘制球面
m(:,i)=getframe; %将球面保存到m矩阵
end
movie(m,10); %以每秒10幅的速度播放球面
e0603.m
x=0:pi/100:2*pi;y1=2*sin(2*x);y2=3*sin(3*x);
plot(x,y1,x,y2)%在同一个坐标系分别绘制二维图形
title('This is figure of the third example. '); %给图形加上标题
xlabel('x'); %给x轴加标注
ylabel('y');
legend('2*sin(2*x)' ,'3*
e0611.m
t=0:pi/20:4*pi;y=exp(-0.2*t).*(cos(t)+i*sin(t));
subplot(2,2,1),plot(t,y); %只绘制实部图形
title('plot of complex function vs time');xlabel('t');ylabel('y(t)');
t=0:pi/20:4*pi;y=exp(-0.2*t).*(cos(t)+i*si
e0617.m
subplot(2,2,1); fplot('x^2+1',[-6 6]);title('1-1')
subplot(2,2,2);fplot('x^2+1',[-6 6],2e-6);title('1-2')
subplot(2,2,3);fplot('x^3+x^2+4',[-6 6]);title('1-3')
subplot(2,2,4);fplot('x^3+x^2+4',[-6