求matlab高手求一个二元非线性方程组的根,并说明是最大值还是最小值原函数是 L= (757871*sin(2*a)*(5/2 - h)^(1/2)*((400*2^(1/2)*109^(1/2)*(h + (5/2 - h)^(1/2)*((502423*cos(a)^2)/12500 - 13579/625))^(1/2))/37 + (400*2^(1/2)*1
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求matlab高手求一个二元非线性方程组的根,并说明是最大值还是最小值原函数是 L= (757871*sin(2*a)*(5/2 - h)^(1/2)*((400*2^(1/2)*109^(1/2)*(h + (5/2 - h)^(1/2)*((502423*cos(a)^2)/12500 - 13579/625))^(1/2))/37 + (400*2^(1/2)*1
求matlab高手求一个二元非线性方程组的根,并说明是最大值还是最小值
原函数是 L= (757871*sin(2*a)*(5/2 - h)^(1/2)*((400*2^(1/2)*109^(1/2)*(h + (5/2 - h)^(1/2)*((502423*cos(a)^2)/12500 - 13579/625))^(1/2))/37 + (400*2^(1/2)*109^(1/2)*(((97296596700893489*cos(a)^2)/2814749767106560 - 2629637748672797/140737488355328)*(5/2 - h)^(1/2) - 3/10)^(1/2))/37 - 20*2^(1/2)*109^(1/2)*(5/2 - h)^(1/2) + 37*2^(1/2)*109^(1/2)*cos(a)^2*(5/2 - h)^(1/2)))/65400000
a和h 都是变量
分别可以求得L对于a和h的偏导数,然后可以求得极值
求matlab高手求一个二元非线性方程组的根,并说明是最大值还是最小值原函数是 L= (757871*sin(2*a)*(5/2 - h)^(1/2)*((400*2^(1/2)*109^(1/2)*(h + (5/2 - h)^(1/2)*((502423*cos(a)^2)/12500 - 13579/625))^(1/2))/37 + (400*2^(1/2)*1
你自己手算出来偏导数式子,编进去多快...