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发表于 2023-3-20 19:05
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本帖最后由 wochipanda 于 2023-3-20 20:59 编辑
%MATLAB自定义zemax 6阶XY多项式代码:
ft=fittype('(1/R*((X/100)^2+(Y/100)^2))/(1+sqrt(1-(1+K)*(1/R)^2*((X/100)^2+(Y/100)^2)))+A2*(Y/100)+A3*(X/100)^2+A5*(Y/100)^2+A7*(X/100)^2*(Y/100)+A9*(Y/100)^3+A10*(X/100)^4+A12*(X/100)^2*(Y/100)^2+A14*(Y/100)^4+A16*(X/100)^4*(Y/100)+A18*(X/100)^2*(Y/100)^3+A20*(Y/100)^5+A21*(X/100)^6+A23*(X/100)^4*(Y/100)^2+A25*(X/100)^2*(Y/100)^4+A27*(Y/100)^6','dependent',{'Z'},...
'independent',{'X','Y'},...
'coefficients',{'R','K','A2','A3','A5','A7','A9','A10','A12','A14','A16','A18','A20','A21','A23','A25','A27'});
opts = fitoptions( 'Method', 'NonlinearLeastSquares' );
opts.Lower = [200 0 -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf -Inf];
[myfit,gof1]=fit([X,Y],Z,ft,opts);
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