哪位大神给这个代码解释一下啊，加个注释

pandaquan0

A=(sqrt(5)+1)/2;

x=0;

y=0;

for n=1:50

k1=A^n;

k2=A^(n-1);

As=(k1-k2)*sin((n-1)*pi/2); Ac= (k1-k2)*cos((n-1)*pi/2);t=n*pi/2:pi/1024:n*pi/2+pi/2;l=length(t);

c=k1*cos(t);

s=k1 *sin(t);

As=As*ones(1,l);
Ac=Ac*ones(1,l);
x=c+x+As;

y=s+y-Ac;

plot(x,y,'linewidth',2); hold on

x=x-c;

y=y-s;
end
axis equal
grid on

PCBQA

斐波那契螺旋线的代码，球球了，急