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Raspberry Pi 的代码
fill02.m
t = 0:0.4:4*pi;
y = sin(t).*exp(-t/5);
fill(t, y, 'y'); % 'y'
stairs01.m
t = 0:0.4:4*pi;
y = cos(t).*exp(-t/5);
stairs(t, y);
stem01.m
t = 0:0.2:4*pi;
y = cos(t).*exp(-t/5);
stem(t, y)
hg02.m
t = 0:0.1:4*pi;
y = exp(-t/5).*sin(t);
h = plot(t, y); % h
hg01.m
t = 0:0.1:4*pi;
y = exp(-t/5).*sin(t);
plot(t, y);
plotxy19.m
theta = linspace(0, 2*pi);
r = cos(4*theta);
polar(theta, r); % 秈︽伐畒夹酶瓜
plotxy13.m
x = 0:0.1:4*pi;
subplot(2, 2, 1); plot(x, sin(x)); %
dff.m
function c = DFF(f,N)
c(1:N)=0;
for(m=1:N)
for(n=1:N)
c(m)=c(m)+f(n)*exp(-i*m*n*2*pi/N);
end
c(m)=c(m)/N;
end
e0553.m
syms t;
int(cos(t)*sin(t),0,pi/2)
e0552.m
syms x y
int(int(sin(pi*(x^2+y^2)),y,-sqrt(1-x^2),sqrt(1-x^2)),x,-1,1)