How to solve quadratic equations

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Jing Hua
Jing Hua 2012-8-9
Hi, I have a few lines of code, really dont know whats wrong with it? Any one?
y=zeros((length(x_cell{1}{1})),1);
x=x_cell{1}{1};
for n=1:length(x)
f(n)=fsolve('(1/238.6318^2)*(x(n)-222.8970)^2+(1/115.8401)^2*(y+95.96210^2)=0','y');
end
Thanks
Jing

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回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-8-9
try
syms x y;
f = solve((1/238.6318^2)*(x-222.8970)^2+(1/115.8401)^2*(y+95.96210^2),y);
f1 = matlabFunction(f);
out = f1(x);

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