How to solve this equation with two variables in one equation ?

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Robert101 2019-8-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/476772-how-to-solve-this-equation-with-two-variables-in-one-equation

评论： Adam Danz 2019-8-20

A = 1;
B = 1;
for n=0.0:0.1:1.0
    for  c = 0.0:0.1:1.0
        c0  = 1.13e-4;
        w   = -A*(c-c0)^2*(n^4-3*n^2+2*n)+B.*(c-1)^2*n^2;
    end
end

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采纳的回答

Adam Danz 2019-8-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/476772-how-to-solve-this-equation-with-two-variables-in-one-equation#answer_388262

编辑：Adam Danz 2019-8-20

在 MATLAB Online 中打开

Loop through index values rather than a vector of values.

Store each iteration in w(n,c) and pre-allocate w with NaNs.

A = 1;
B = 1;
c0  = 1.13e-4;
% Vectors to loop through
nVec=0.0:0.1:1.0;  
cVec = 0.0:0.1:1.0;
w = nan(numel(nVec),numel(cVec)); %pre-allocate with NaNs
% Loop through each element of nVec
for n=1:numel(nVec)
    % Loop through each element of cVec
    for  c = 1:numel(cVec)
        w(n,c) = -A*(cVec(c)-c0)^2*(nVec(n)^4-3*nVec(n)^2+2*nVec(n))+B.*(cVec(c)-1)^2*nVec(n)^2;
    end
end