0 个投票

please help to solve and explain why
function f = fun(x)
f(1) = (x(1)-4)^2 +(x(2)-4)^2 - 5;
f(2) = x(1)^2 + x(2)^2 - 16;
options = optimset('display','off')
x = fsolve(@fun,[2 3.5],options)
X = x(1)
Y = x(2)
>> fun()
Not enough input arguments.
Error in fun (line 2)
f(1) = (x(1)-4)^2 +(x(2)-4)^2 - 5;
>>

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Catalytic
Catalytic 2019-3-27
编辑：Catalytic 2019-3-27

0 个投票

function myProblem
options = optimset('display','off')
x = fsolve(@fun,[2 3.5],options)
X = x(1)
Y = x(2)
function f = fun(x)
f(1) = (x(1)-4)^2 +(x(2)-4)^2 - 5;
f(2) = x(1)^2 + x(2)^2 - 16;
end
end
Running gives the following result
>> myProblem
x =
1.8058 3.5692
X =
1.8058
Y =
3.5692

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Thank you, it works. Why is my function doesn't work? The answer would be really helpful when I get the same problem next time..
Catalytic
Catalytic 2019-3-27
As you can now see, fun() is supposed to contain only the code that computes f.

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