Question

lingo错误1017求高手解决！！！急！！！！

max=21.5+x1*sin(4pi*x1)+x2*sin(20pi*x2);
-3.0<=x1<=12.1;
4.1<=x2<=5.8;
谢了~

Answer 1

max=21.5+x1*@sin(4*pi*x1)+x2*@sin(20*pi*x2);
x1<=12.1;
x1>=-3.0;
x2<=5.8;
x2>=4.1;