[MATLAB基础] 各位大侠，好心人，帮我解决下这个简单的问题。不胜感激

[shipi0820]

方程组列出来了：
（Xb1-Xe1）^2+(Yb1-Ye1)^2=be^2
(Xa-Xb1)^2+(Ya-Yb1)^2=ab^2
(Xc1-Xd)^2+(Yc1-Yd)^2=cd^2
(Xb1-Xc1)^2+(Yb1-Yc1)^2=bc^2
(Xc1-Xe1)^2+(Yc1-Ye1)^2=ce^2
`````````以此类推，角标由1到4，共20个方程，解出除Xe,Ye,Xa,Ya,Xd,Yd,ad以外的所有未知数
（Xb4-Xe4）^2+(Yb4-Ye4)^2=be^2
(Xa-Xb4)^2+(Ya-Yb4)^2=ab^2
(Xc4-Xd)^2+(Yc4-Yd)^2=cd^2
(Xb4-Xc4)^2+(Yb4-Yc4)^2=bc^2
(Xc4-Xe4)^2+(Yc4-Ye4)^2=ce^2
怎样编程用matlab解决这个问题呢？小弟跪谢了。。