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Raspberry Pi 的代码
dft.m
function[Xk]=DFT(xn,N,k)
Xk=xn*(exp(-j*2*pi/N)).^(n'*k);
example1_10.m
t=0:pi/20:2*pi;
plot(t,sin(t));
delete(gca);
exa10_1.m
xx=(1:5)/5*pi;yy=sin(xx).*exp(xx)
a=magic(2)
exa3_27.m
int(sym('log(x)/exp(x^2)'))
f=sym('sin(s+2*x)')
int(f)
int(f,'s')
int(f,pi/2,pi)
int(f,'s',pi/2,pi)
int(f,'m','n')
sinc.m
function y=sinc(x)
% 函数 y=sinc(x)=sin(pi*x)./(pi*x)
% -----------------------
x = x + eps;
y = sin(pi*x) ./ (pi*x);
obj.m
function Z=obj(X,Y)
Z=21.5+X.*sin(4*pi*X)+Y.*sin(20.*pi.*Y);
fesin.m
function f=fesin(x)
f=exp(-0.5*x).*sin(x+pi/6);
myfun.m
function Y= myfun(x)
Y=200*sin(1./tan(pi.*x));
sint.m
f=sym('sin(pi*t)') % f(t)=sin(ωt),
subplot(211)
ezplot(f)
fesin.m
function f=fesin(x)
f=exp(-0.5*x).*sin(x+pi/6);