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¹ØÓÚ fsolve º¯ÊýµÄʹÓÃ
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Â¥Ö÷ÏÖÔÚÕýÔÚ×öÒ»¸ö·ÂÕæ£¬Óöµ½Ò»Ð©À§ÄÑ£¬Çë¸÷λ·¹ýµÄ¸ßÊÖ°ï°ï棡 ÎÊÌâÈçÏ£ºÖ÷º¯Êý²úÉúÁù¸ö²ÎÊýlamdad, miud, etad£¬lamdae,miue,etae£¬function ÐèÒªÕâÁù¸ö²ÎÊýÖеÄһЩ£¬ÇëÎÊÒªÔõô¶ÁÈ¡ÕâЩֵ£¬¶øÇÒÔÚÖ÷º¯ÊýÖл¹ÒªÓÃfsolveº¯ÊýÀ´Çó½âÒ»¸öÈýÔªµÄ·ÇÏßÐÔ·½³Ì×飨·½³Ì×éΪF£©¡£ ------------------------------------------------------------------------------------------------------ Ö÷º¯Êý£º for ii = 1 : cd +dd [lamdad, miud, etad] = fun_myunified(ii, ad, bd, cd, dd); for jj = 1 : ce + de [lamdae,miue,etae] = fun_myunified(jj, ae, be, ce, de); ------------------------------------------------------------------------------------------------------ function output = fun£¨*,*,*£© F = [x(1)*gamma(x(2)+1/x(3))/(x(2)^(1/x(3))*gamma(x(2))) - 2* miue.*miud .* (betae./etad).^((miud-miue)./2) .* average_gg((miud+miue)/2 , miud-miue, xi); x(1)^2*gamma(x(2)+2/x(3))/(x(2)^(2/x(3))*gamma(x(2))) - 2* miue.*miud .* (betae./etad).^((miud-miue)./2) .* average_gg((miud+miue)/2+1 , miud-miue, xi); x(1)^3*gamma(x(2)+3/x(3))/(x(2)^(3/x(3))*gamma(x(2))) - 2* miue.*miud .* (betae./etad).^((miud-miue)./2) .* average_gg((miud+miue)/2+2 , miud-miue, xi)]; ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ÔÚÖ÷º¯ÊýÖÐÓÖÐèÒªÓÃfsolve½â³öÀ´µÄÈý¸ö²ÎÊý¡£ ------------------------------------------------------------------------------------------------------- Ö÷º¯Êý£º for ii = 1 : cd +dd [lamdad, miud, etad] = fun_myunified(ii, ad, bd, cd, dd); for jj = 1 : ce + de [lamdae,miue,etae] = fun_myunified(jj, ae, be, ce, de); x0 = [1; 1; 1]; % Make a starting guess at the solution options = optimoptions('fsolve','Display','iter'); % Option to display output [x1,fval1] = fsolve(@fun,x0,options); % Call solver --------------------------------------------------------------------------------------------------------- лл£¡ |
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