作业帮解符号方程组的问题>> [Fax,Fay,Mq,Fcx,Fcy,Fdx,Fdy,Fex,Fey,Ffx,Ffy,M]=solve('Fax-Fcx-m1*A1*cos(r1)=0','Fax-Fcy-m1*A1*sin(ri)=0','Fax*Yc1+Fay*Xc1+Mc1-Mq+Fcx*(Yc-Yc1)-Fcy*(Xc-Xc1)=0','Fcx+Fdx-m2*A2*cos(r2)=0','Fcy+Fdy-m2*A2*sin(r2)=0','(Fcx-Fdx)
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解符号方程组的问题>> [Fax,Fay,Mq,Fcx,Fcy,Fdx,Fdy,Fex,Fey,Ffx,Ffy,M]=solve('Fax-Fcx-m1*A1*cos(r1)=0','Fax-Fcy-m1*A1*sin(ri)=0','Fax*Yc1+Fay*Xc1+Mc1-Mq+Fcx*(Yc-Yc1)-Fcy*(Xc-Xc1)=0','Fcx+Fdx-m2*A2*cos(r2)=0','Fcy+Fdy-m2*A2*sin(r2)=0','(Fcx-Fdx)
解符号方程组的问题
>> [Fax,Fay,Mq,Fcx,Fcy,Fdx,Fdy,Fex,Fey,Ffx,Ffy,M]=solve('Fax-Fcx-m1*A1*cos(r1)=0','Fax-Fcy-m1*A1*sin(ri)=0','Fax*Yc1+Fay*Xc1+Mc1-Mq+Fcx*(Yc-Yc1)-Fcy*(Xc-Xc1)=0','Fcx+Fdx-m2*A2*cos(r2)=0','Fcy+Fdy-m2*A2*sin(r2)=0','(Fcx-Fdx)*1/2*385*sin(a8)+(Fcy-Fdy)*1/2*385*cos(a8)+Mc2=0','Fex-Fdx-Px-m3*A3*cos(r3)=0','Fey-Fdy+Py-m3*A3*sin(r3)=0','-Fex(Ye-Yc3)-Fey*(Xe-Xc3)+Fdx*(Yd-Yc3)+Fdy*(Xd-Xc3)+Px*(Xp-Xc3)-Py*(Yp-Yc3)-Mc3=0','Ffx-Fex-m4*A4*cos(r4)=0','Ffy-Fey-m4*A4*sin(r4)=0','(-Fex-Ffx)*1/2*20*sin(a4)+(-Fey-Ffy)*1/2*20*cos(a4)+M=0')
解12个方程求解12个未知量,为什么求不出来呢?解出结果如下,空的······
Warning:Explicit solution could not be found.
> In F:\MATLAB\toolbox\symbolic\solve.m at line 136
Fax =
[ empty sym ]
Fay =
[]
Mq =
[]
Fcx =
[]
Fcy =
[]
Fdx =
[]
Fdy =
[]
Fex =
[]
Fey =
[]
Ffx =
[]
Ffy =
[]
M =
[]
怎么解这个方程组啊?
解符号方程组的问题>> [Fax,Fay,Mq,Fcx,Fcy,Fdx,Fdy,Fex,Fey,Ffx,Ffy,M]=solve('Fax-Fcx-m1*A1*cos(r1)=0','Fax-Fcy-m1*A1*sin(ri)=0','Fax*Yc1+Fay*Xc1+Mc1-Mq+Fcx*(Yc-Yc1)-Fcy*(Xc-Xc1)=0','Fcx+Fdx-m2*A2*cos(r2)=0','Fcy+Fdy-m2*A2*sin(r2)=0','(Fcx-Fdx)
A3,a3是什么?你可以正常表诉一下吗?
MAtlAB我不懂,但是用MAthematica我可以求解.