谢谢~~
x(1)=0.1*rand(1,1);
y(1)=0.1*rand(1,1);
a=2;
b=2.5;
for i=2:20000
x(i)=a*y(i-1)*sin(x(i-1));
y(i)=abs(x(i-1))-b;
end
plot(x,y);
最后结果,不明白可追问。