min=2*x11+x12+3*x13+x14+2*x15+4*x21+2*x22+x23+3*x24+x25+2*x3
min=2*x11+x12+3*x13+x14+2*x15+4*x21+2*x22+x23+3*x24+x25+2*x3
model: min=800*x11+1000*x12+1200*x13+700*x21+500*x22+700*x23
LINDO程序max 3100x11+3100x12+3100x13+3800x21+3800x22+3800x23+3
model:Min=x1+x2+x3+x4+x5+x6+x7+x8+x9+x10+x11+x12+x13+x14+x15
怎么用lingo实现编写这一步?(x11+x12+x13)*0.5+(x21+x22+x23)*0.3
用lingo软件解题min s=50*X11+60*X12+70*X13+60*X21+110*X22+160*X23S
因式分解:X15+X14+X13+X12+X11+X10+X9+X8+X7+X6+X5+X4+X3+X2+X+1
2x2/1x3+4x4/3x5+6x6/5x7+8x8/7x9+10x10/9x11+12x12/11x13 仔细看看
求问lingo大神!model:max=3*x11+9*x12-7*x21-x22-x31+5*x32-6*x41;0.
lingo 整数我设定的变量是X11,X12,X13,X17X21,X22,X23,X27,X231,X232,X233
min @abs(x21+x31-2/3)+@abs(x22+x32+x42-5/3)+@abs(x33+x43-2/3
1、求一个正交变换,将二次型f(x1,x2,x3)=2x12+3x22+3x32+4x2x3化成标准形.