ä¾å¦æ±è§£æ¹ç¨ç»:x1^2+x2^2=4;x1^2-x2^2=1
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clear;
x0=1;y0=1;n=10;tol=1e-6;
x(1)=x0;y(1)=y0;
i=1;u=[1 1];k(1)=1;
while(norm(u)>tol*norm([x(i),y(i)]'))
A=2*[x(i),y(i);x(i),-y(i)];
b=[4-x(i)^2-y(i)^2,1-x(i)^2+y(i)^2]';
u=A\b;
x(i+1)=x(i)+u(1);
y(i+1)=y(i)+u(2);
i=i+1;k(i)=i;
if(i>n)error('n is full');
end
end
[k',x',y']
å¾å°ans =
1.0000 1.0000 1.0000
2.0000 1.7500 1.2500
3.0000 1.5893 1.2250
4.0000 1.5812 1.2247
5.0000 1.5811 1.2247
6.0000 1.5811 1.2247
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