未定义与 'function_handle' 类型的输入参数相对应的运算符 '*'。
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a=0.04;b=0.05;c=30;d=20;g=100;
f1=g*(@(x)exp(-b*x(2))/b+@(x)exp(-a*x(1))/a+((x(1)+x(2))-(b*x(2)+a*x(1)+1)/(a+b)-(a*b*(x(1)+x(2))-x(2)*a^2-x(1)*b^2)/((a+b)^2))*@(x)exp(-(b*x(2)+a*x(1))));
f2=c*(x(1)+(@(x)exp(-a*x(1))-1)/a+@(x)exp(-b*x(2))/b-(@(x)exp(-a*x(1))*@(x)exp(-b*x(2)))/(a+b));
f3=d*(x(2)+(@(x)exp(-b*x(2))-1)/b+@(x)exp(-a*x(1))/a-(@(x)exp(-a*x(1))*@(x)exp(-b*x(2)))/(a+b));
fun=f1+f2+f3;
lb=0;ub=80;
[x,fval]=ga(fun,2,[],[],[],[],lb,ub)
求大神帮忙看看,我想用ga工具箱求一个二元函数的最小值,运行完之后提示f1错误,原因是:未定义与 'function_handle' 类型的输入参数相对应的运算符 '*'。
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Accepted Answer
fbpwacx
on 22 May 2023
仅供参考
a=0.04;b=0.05;c=30;d=20;g=100;
fun=@(x)g*(exp(-b*x(2))/b+exp(-a*x(1))/a+((x(1)+x(2))-(b*x(2)+a*x(1)+1)/(a+b)-(a*b*(x(1)+x(2))-x(2)*a^2-x(1)*b^2)/((a+b)^2))*exp(-(b*x(2)+a*x(1))))...
+c*(x(1)+(exp(-a*x(1))-1)/a+exp(-b*x(2))/b-(exp(-a*x(1))*exp(-b*x(2)))/(a+b))...
+d*(x(2)+(exp(-b*x(2))-1)/b+exp(-a*x(1))/a-(exp(-a*x(1))*exp(-b*x(2)))/(a+b));
lb=0;ub=80;
[x,fval]=ga(fun,2,[],[],[],[],lb,ub)
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