[求助]求2个隐函数曲面的交线

[心际依然]

我用slove求解方程，出错了。
Warning: Explicit solution could not be found.
> In solve at 140
In sym.solve at 49

S =

[ empty sym ]


??? Error using ==> reshape
To RESHAPE the number of elements must not change.

Error in ==> sym.maple at 94
result = reshape(result,size(varargin{3}));

Error in ==> sym.sin at 7
Y = maple('map','sin',X);

怎么回事呢？