会matlab的来帮个忙!minz=1600x1+1600x2+1600x3+1600x4+300x1*x1+300x2*x2+300x3*x3+300x4 *x4-300x1*x2-300x2*x3-300x3*x4-300x4*x1-1433600 =220 =256 =240 =180 x1.x2.x3.x4都为整数这是最优解minz 183500 x1 248 x2 256 x3 248
网友回答
matlab的整数规划不太好,是这样的.
function hh
LB=[220,256,240,180]
[X,FVAL,EXITFLAG]=fmincon(@f,[100 100 100 100],[],[],[],[],LB,[])
function yhat=f(x)
yhat=1600*(x(1)+x(2)+x(3)+x(4))+300*(x(1)*x(1)+x(2)*x(2)+x(3)*x(3)+x(4)*x(4))-300*(x(1)*x(2)+x(2)*x(3)+x(3)*x(4)+x(4)*x(1))-1433600;
结果：X =248.0000 256.0000 248.0000 245.3333
FVAL =1.8347e+005
EXITFLAG =
5用excel作,很简单的.
======以下答案可供参考======
供参考答案1:
程序算出来不就好了吗
不然你就用单纯型法手工计算一边就好了