哪位大神给看看，这个为啥报错？

uerriup

syms th1 th2 a b th3 c d e
eq1=c*cos(th1)+d*cos(th2)==a+e*cos(th3);
& E+ M1 \, W' V9 A- qeq2=c*sin(th1)+d*sin(th2)+b==e*sin(th3);
2 T3 y9 {) [& L" s[th2,th3]=solve(eq1,eq2,[th2,th3]);
4 M& N' S' k( c1 E, i8 \# H警告: Unable to find explicit solution. For options, see help.
: Q' e0 B4 ]0 O) q; L> In solve (line 317)

NNNei256

帮你顶一个

uperrua

超越方程，求不出解析解，只能代入具体数值后用vpasolve等函数求数值解