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Raspberry Pi 的代码
f.m
function f = f(t,x,y)
f = exp(-t)*sin(pi*x)*cos(pi*y)*(-1+2*pi*pi);
ex5_12.m
t=0:pi/50:2*pi;
r=sin(t).*cos(t);
polar(t,r,'-*');
fresnelc.m
function cx = fresnelc(x)
cx = cos(pi * .5 .* x.^2);
fresnels.m
function cx = fresnels(x)
cx = sin(pi * .5 .* x.^2);
fresnelc.m
function cx = fresnelc(x)
cx = cos(pi * .5 .* x.^2);
fresnels.m
function cx = fresnels(x)
cx = sin(pi * .5 .* x.^2);
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
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
liti42.m
fplot('[tanh(x),sin(x),cos(x)]',2*pi*[-1 1 -1 1])
liti42.m
fplot('[tanh(x),sin(x),cos(x)]',2*pi*[-1 1 -1 1])