What is the problem here to run this code? Can I run this code without using fsolve?

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Akash Talapatra 2022-2-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1652740-what-is-the-problem-here-to-run-this-code-can-i-run-this-code-without-using-fsolve

评论： Akash Talapatra 2022-2-18

function fn=ex_sys_n(x);
fn(1)=exp(-x(1)+x(2))-x(1)^2;
fn(2)=sin(x(1))+cos(x(2));
clc; clear all; 
fun=@(x) ex_sys_nl(x);
x0=[0,0];
x=fsolve(fn,x0)

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采纳的回答

Matt J 2022-2-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1652740-what-is-the-problem-here-to-run-this-code-can-i-run-this-code-without-using-fsolve#answer_899075

在 MATLAB Online 中打开

x0=[0,0];
x=fsolve(@ex_sys_n,x0)
Equation solved.

fsolve completed because the vector of function values is near zero
as measured by the value of the function tolerance, and
the problem appears regular as measured by the gradient.
x = 1×2
    0.3283   -1.8991
function fn=ex_sys_n(x);
 fn(1)=exp(-x(1)+x(2))-x(1)^2;
 fn(2)=sin(x(1))+cos(x(2));
end