12.8X34.5+12.8X12.3+46.8X87.2=?简便运算!

12.8X34.5+12.8X12.3+46.8X87.2=?简便运算! lingo 出现1017min = 6*x11+2*x12+6*x13+7*x14+4*x21+9*x22+5*x23+3*x24+8*x31+8*x32+x33+5*x34;x11+x12+x13+x14=30;x21+x22+x23+x24=25;x31+x32+x33+x34=21;x11+x21+x31=15;x12+x22+x32=17;x13+x23+x33=22;x14+x24+x34=12; 7.48+3.17-（2.48-6.83） 7.6x7/4+17.5x6/25 1333305/2x88+880x133339/43.6x11.1+1.2x66.7 7.2x14.5+17x2.8 256x254/255+254x1/25512.8x34.5+12.8x12.3+46.8x87.2 min=2*x11+x12+3*x13+x14+2*x15+4*x21+2*x22+x23+3*x24+x25+2*x31+x32+x33+3*x34+4*x35x11+x12+x13+x14+x15 lingo 错误代码1017max=100*(x11+x21+x31+x41+x51+x61) + 60*(x12+x22+x32+x42+x52+x62)+8*(x13+x23+x33+x43+x53+x63)+40*(x14+x24+x34+x44+x54+x64)+110*(x15+x25+x35+x45+x55+x65)+60*(x16+x26+x36+x46+x56+x66)+30*(x17+x27+x37+x47+x57+x67)-5*(x11+x12+x13+x14 找lingo错误MAX 63xl2+76x13+71x23+50x24+85x25+63x34+77x45+39x46+92x47+74x56+89x67st x12+x13+x23+x24+x25+x34+x45+x46+x47+x56+x57 求帮忙用MATLAB求利润的最大值问题.z(利润)=240x11+270x12+180x13+230x14+260x21+270x22+210x23+240x24+210x31+200x32+220x33+20x34,约束条件:x11+x12+x13+x14≤50,x11+x12+x13+x14≤50,x31 + x32 + x33 +x34 ≤50,30≤x11+x21+x31≤30+50,60 lingo问题求纠正.min 6x11+2x12+6x13+7x14+4x15+2x16+5x17+9x18+4x21+9x22+5x23+3x24+8x25+5x26+8x27+2x28+5x31+2x32+1x33+9x34+7x35+4x36+3x37+5x38+7x41+6x42+7x43+3x44+9x45+2x46+7x47+1x48+2x51+3x52+9x53+5x54+7x55+2x56+6x57+5x58+5x61+5x62+2x63+2x64+8x65+ MATLAB中定义变量的问题比如说可以用syms定义>> syms x11 x12 x13 x14>> syms x21 x22 x23 x24>> syms x31 x32 x33 x34>> syms x41 x42 x43 x44这十六个变量,但是如果定义5阶,6阶等更多矩阵的变量是很麻烦,而且也不灵 哪位能告诉我LINGO定义的x为什么是两个,代码如下MIN =66.8*x11+75.6*x12+87*x13+58.6*x14+57.2*x21+66*x22+66.4*x23+53*x24+78*x31+x32*67.8+x33*84.6+x34*59.4 +67.4*x51+71*x52+83.8*x53+62.4*x54;sets:renwu/1..5/:i;xiangmu/1..4/:j;AB(renwu,xi 激励电压 5X12是什么意思 matlab中的sym（）函数问题sym('[x11 x12 x13 x14;x21 x22 x23 x24;x31 x32 x33 x34;x41 x42 x43 x44]') 和sym([x11 x12 x13 x14;x21 x22 x23 x24;x31 x32 x33 x34;x41 x42 x43 x44]) 的意义分别是什么 这与直接定义矩阵又有什么不同 下面公式用lingo如何表示?z=max (d1,d2,d3,d4,d5);d1=min(2*x11+10*x21+9*x31+7*x41+8*x51+12*x61+5*x71);d2=min(15*x12+4*x22+14*x32+8*x42+4*x52+4*x62+16*x72);d3=min(13*x13+14*x23+16*x33+11*x43+15*x53+6*x63+8*x73);d4=min(1*x14+15*x24+13*x34+9*x44+8 (12分之1+14分之5)X12 0.5x12.5x8x0.2简便计算 27.5-55X12.5+12.5 简便计算 , 25x1.6x12.5简便计算 31X83/2-34/3x83/2x2-9.5x34/3