数学建模lingo问题max=x*{2100-[1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x]}+y*{2000-[1000+225+100+135000/(1.4x+y)+200+85000*2/(x+2y)+125+75000/y]};1.4*x+y
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![数学建模lingo问题max=x*{2100-[1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x]}+y*{2000-[1000+225+100+135000/(1.4x+y)+200+85000*2/(x+2y)+125+75000/y]};1.4*x+y](/uploads/image/z/1804201-25-1.jpg?t=%E6%95%B0%E5%AD%A6%E5%BB%BA%E6%A8%A1lingo%E9%97%AE%E9%A2%98max%3Dx%2A%7B2100-%5B1200%2B200%2B120%2B135000%2A1.4%2F%281.4%2Ax%2By%29%2B105%2B85000%2F%28x%2B2%2Ay%29%2B175%2B90000%2Fx%5D%7D%2By%2A%7B2000-%5B1000%2B225%2B100%2B135000%2F%281.4x%2By%29%2B200%2B85000%2A2%2F%28x%2B2y%29%2B125%2B75000%2Fy%5D%7D%3B1.4%2Ax%2By)
数学建模lingo问题max=x*{2100-[1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x]}+y*{2000-[1000+225+100+135000/(1.4x+y)+200+85000*2/(x+2y)+125+75000/y]};1.4*x+y
数学建模lingo问题
max=x*{2100-[1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x]}+y*{2000-[1000+225+100+135000/(1.4x+y)+200+85000*2/(x+2y)+125+75000/y]};
1.4*x+y
数学建模lingo问题max=x*{2100-[1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x]}+y*{2000-[1000+225+100+135000/(1.4x+y)+200+85000*2/(x+2y)+125+75000/y]};1.4*x+y
!1.4x 改为 1.4*x, 2y 改为 2*y, {} 和 [] 都改为 () ;
max=x*(2100-(1200+200+120+135000*1.4/(1.4*x+y)+105+85000/(x+2*y)+175+90000/x))+y*(2000-(1000+225+100+135000/(1.4*x+y)+200+85000*2/(x+2*y)+125+75000/y));
1.4*x+y
lingo里面只有圆括号 换掉你的所有花括号和方括号再试