2楼: Originally posted by yqx1985 at 2013-08-25 17:39:41
Matlab 代码如下
% 1. 首先将你的表达式编写为函数
function  y=zhonggsydx(x)
x1=x(1);x2=x(2);x3=x(3);x4=x(4);
y=0.38-11.7*x1-0.5*x2-1.2*x3-0.42*x4+21.6*x1*x1-0.25*x2*x2-0.02*x3*x3-0.32*x4*x4+1.36*x1 ...