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o0华-阳0o

银虫 (初入文坛)

[交流] 如何利用MATLAB求最小值

min=12*(6^2+x1^2)^(1/2)+18*(4^2+(x2-x1)^2)^(1/2)+28*(5^2+(x3-x2)^2)^(1/2)+16*(6^2+(x4-x3)^2)^(1/2)+12*(5^2+(40-x4)^2)^(1/2);
s.t.
x1-x2<0;
x2-x3<0;
x3-x4<0;
x4-40<=0;
(6^2+x1^2+4^2+(x2-x1)^2-((6+4)^2+x2^2))/(2*x1*(x2-x1))-cos(8/9*pi)<=0;
(4^2+(x2-x1)^2+5^2+(x3-x2)^2-((4+5)^2+(x3-x1)^2))/(2*(x2-x1)*(x3-x2))-cos(8/9*pi)<=0;
(5^2+(x3-x2)^2+6^2+(x4-x3)^2-((5+6)^2+(x4-x2)^2))/(2*(x3-x2)*(x4-x3))-cos(8/9*pi)<=0;
(6^2+(x4-x3)^2+5^2+(40-x4)^2-((6+5)^2+(40-x3)^2))/(2*(x4-x3)*(40-x4))-cos(8/9*pi)<=0;

请问虫友们如何用MATLAB求解?
就是应该如何在MATLAB中输代码?
谢谢!
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sandisker

铜虫 (小有名气)

2楼2010-05-15 17:25:02
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kuangfg1987

至尊木虫 (职业作家)

建议用mathematic去算……
3楼2010-05-15 21:49:12
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bdewang

银虫 (小有名气)

在matlab 中输入命令 help min或者doc min,就可以看到使用办法。
4楼2010-05-19 19:07:28
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poscher

木虫 (正式写手)

一生有Li

如果已经y的数组,直接min(y)就好。
与人为善结善缘虚心学人纳人言自谦自淡薄名利莫争莫狂忍为先
5楼2010-05-23 19:34:52
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