怎么用MATLAB解这个方程组
<P >求方程组</P><P ><FONT face="Times New Roman">- X1-3 X2+2X3=V - Y1-2 Y2+ Y3=V<p></p></FONT></P>
<P ><FONT face="Times New Roman"> - 2X1=V - 3Y1 + Y3=V<p></p></FONT></P>
<P ><FONT face="Times New Roman"> X1+X2-2X3=V 2Y1-2 Y3=V<p></p></FONT></P>
<P ><FONT face="Times New Roman"> X1+ X2+X3=1 Y1+ Y2+ Y3=1<p></p></FONT></P> 有解么 用1stOpt可轻易得解如下:<BR>x1: 0.181818181818182<BR>x2: 0.363636363636364<BR>x3: 0.454545454545455<BR>v: -0.363636363636364<BR>y1: 0.272727272727273<BR>y2: 0.272727272727273<BR>y3: 0.454545454545455
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