求问,用matlab 解符号非线性方程组的时候出现 matlab Explicit solution could not

求问,用matlab 解符号非线性方程组的时候出现 matlab Explicit solution could not be foundsyms a b c d e f g h i j k l m n o;p=f*cos(k)+g*sin(a)+o-i*sin(c)-h*sin(b);q=f*sin(k)+g*cos(a)+h*cos(b)+i*cos(c)-n;r=f*cos(k)+g*sin(a)+j*sin(d)+o-e;s=f*sin(k)+g*cos(a)+j*cos(d)+m-n;t=l-pi+a+b;[a,b,c,d,e]=solve(p,q,r,s,t);a=simplify(a),b=simplify(b) ,c=simplify(c),d=simplify(d),e=simplify(e)