matlab三元一次符号方程组解不出来>> syms va vb vc ra rb rc w ya yb yc rb wb n a b ;>> solve('va=ra*w*cos(ya)-r*wb*cos(n)','vb=rb*w*cos(yb)+r*wb*sin(a+n)','vc=rc*w*cos(yc)+r*wb*sin(b-n)','n,w,wb')Warning:Explicit solution could not be foun
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![matlab三元一次符号方程组解不出来>> syms va vb vc ra rb rc w ya yb yc rb wb n a b ;>> solve('va=ra*w*cos(ya)-r*wb*cos(n)','vb=rb*w*cos(yb)+r*wb*sin(a+n)','vc=rc*w*cos(yc)+r*wb*sin(b-n)','n,w,wb')Warning:Explicit solution could not be foun](/uploads/image/z/5171632-16-2.jpg?t=matlab%E4%B8%89%E5%85%83%E4%B8%80%E6%AC%A1%E7%AC%A6%E5%8F%B7%E6%96%B9%E7%A8%8B%E7%BB%84%E8%A7%A3%E4%B8%8D%E5%87%BA%E6%9D%A5%3E%3E+syms+va+vb+vc+ra+rb+rc+w+ya+yb+yc+rb+wb+n+a+b+%3B%3E%3E+solve%28%27va%3Dra%2Aw%2Acos%28ya%29-r%2Awb%2Acos%28n%29%27%2C%27vb%3Drb%2Aw%2Acos%28yb%29%2Br%2Awb%2Asin%28a%2Bn%29%27%2C%27vc%3Drc%2Aw%2Acos%28yc%29%2Br%2Awb%2Asin%28b-n%29%27%2C%27n%2Cw%2Cwb%27%29Warning%3AExplicit+solution+could+not+be+foun)
matlab三元一次符号方程组解不出来>> syms va vb vc ra rb rc w ya yb yc rb wb n a b ;>> solve('va=ra*w*cos(ya)-r*wb*cos(n)','vb=rb*w*cos(yb)+r*wb*sin(a+n)','vc=rc*w*cos(yc)+r*wb*sin(b-n)','n,w,wb')Warning:Explicit solution could not be foun
matlab三元一次符号方程组解不出来
>> syms va vb vc ra rb rc w ya yb yc rb wb n a b ;
>> solve('va=ra*w*cos(ya)-r*wb*cos(n)','vb=rb*w*cos(yb)+r*wb*sin(a+n)','vc=rc*w*cos(yc)+r*wb*sin(b-n)','n,w,wb')
Warning:Explicit solution could not be found.
> In solve at 98
ans =
[ empty sym ]
matlab三元一次符号方程组解不出来>> syms va vb vc ra rb rc w ya yb yc rb wb n a b ;>> solve('va=ra*w*cos(ya)-r*wb*cos(n)','vb=rb*w*cos(yb)+r*wb*sin(a+n)','vc=rc*w*cos(yc)+r*wb*sin(b-n)','n,w,wb')Warning:Explicit solution could not be foun
n是未知量的情况下,这不是三元一次方程.应该是非线性方程
用求解非线性方程组的函数试试