[求助]solve 解方程

[apal0069]

>> syms x y
>> [x,y]=solve('((83.996-36.8899)^2+(18.7843+8)^2)^(1/2)+1.46*((36.8899-y)^2+(18.7843-x)^2)^(1/2)+((x+5)^2+y^2)^(1/2)-94.8472=0','(36.8899-y)/(18.7843-x)=-0.4415')
Warning: Explicit solution could not be found.
> In solve at 140

x =

[ empty sym ]



y =

[]
这个方程不知道出了什么问题 解不出来 跟这个一样形式的另一个就可以解出来

>> [xp,yp]=solve('((18.6187-5)^2+25.1147^2)^(1/2)+1.46*((xp-18.6187)^2+(yp-25.1147)^2)^(1/2)+((xp+8)^2+(83.996-yp)^2)^(1/2)-99.9514=0','(yp-25.1147)/(xp-18.6187)=71.1245')

xp =

18.784257794722172524887546392801
18.578567045455494242866590180400



yp =

36.889915370717159746364293414787
22.260263674499300276764793285895

很奇怪啊 为什么呢？