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Raspberry Pi 的代码
phi.m
function f = phi(x)
f = 1/(sqrt(2*pi))*exp(-x.^2/2);
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
ex5_12.m
t=0:pi/50:2*pi;
r=sin(t).*cos(t);
polar(t,r,'-*');
ex5_12.m
t=0:pi/50:2*pi;
r=sin(t).*cos(t);
polar(t,r,'-*');
normal.m
function y=normal(x)
y=(1/(2*pi)^0.5)*exp(-x.^2/2);
exm050232_1.m
syms a x;f=a*sin(x)+5;
f1=subs(f,'sin(x)',sym('y')) %
f2=subs(f,{a,x},{2,sym(pi/3)}) %
f3=subs(f,{a,x},{2,pi/3}) %
f4=subs(subs(f
normal.m
function y=normal(x)
y=(1/(2*pi)^0.5)*exp(-x.^2/2);
ex5_12.m
t=0:pi/50:2*pi;
r=sin(t).*cos(t);
polar(t,r,'-*');