matlab解方程，求助Warning: Explicit solution could not be found.

[a,b,c,d,e,f,g]=solve('0.5167852*sin(a)+0.3517007*sin(b)+0.06316903*sin(c)+0.01380555*sin(d)+0.0176971*sin(e)+0.004001712*sin(f)+0.002556825*sin(g)=0.002493662','0.5167852*sin(a+0.0925)+0.3517007*sin(b+0.185)+0.06316903*sin(c+0.2775)+0.01380555*sin(d+0.37)+0.0176971*sin(e+0.4625)+0.0040017128*sin(f+0.555)+0.002556825*sin(g+0.6475)=0.7526348','0.5167852*sin(a+0.24666667)+0.3517007*sin(b+0.4933333)+0.06316903*sin(c+0.74)+0.01380555*sin(d+0.9866667)+0.0176971*sin(e+1.23333)+0.004001712*sin(f+1.48)+0.002556825*sin(g+1.726667)=0.04001712','0.5167852*sin(a+0.33333)+0.3517007*sin(b+0.666667)+0.06316903*sin(c+1)+0.01380555*sin(d+1.333333)+0.0176971*sin(e+1.66667)+0.004001712*sin(e+2)+0.002556825*sin(g+2.33333)=-0.00259129','0.5167852*sin(a+0.41583333)+0.3517007*sin(b+0.8316667)+0.06316903*sin(c+1.2475)+0.01380555*sin(d+1.66333)+0.0176971*sin(e+2.0791667)+0.004001712*sin(f+2.495)+0.002556825*sin(g+2.9108)=-0.0404713','0.5167852*sin(a+0.5808333)+0.3517007*sin(b+1.1616667)+0.06316903*sin(c+1.7425)+0.01380555*sin(d+2.32333)+0.0176971*sin(e+2.9041667)+0.0040017128*sin(f+3.485)+0.002556825*sin(g+4.0658)=-0.7597','0.5167852*sin(a+0.666667)+0.35170078*sin(b+1.33333)+0.06316903*sin(c+2)+0.013805558*sin(d+2.66667)+0.0176971*sin(e+3.3333)+0.004001712*sin(f+4)+0.002556825*sin(g+4.66667)=0.00368362','a','b','c','d','e','f','g')
我要求的是a,b,c,d,e,f,g,为什么出现Warning: Explicit solution could not be found.？？？？？？

参考fsolve函数

warning: explicit solution could not be found.的意思是得不到显式的解析解..... 看你的代码,不是龙格库塔法吗? 怎么又夹杂着符号运算?