If your vector field is not defined at the origin but defined everywhere else you cannot use this guy, but maybe you can still use, say, the half-sphere, for example.

如果向量场在原点处没有定义，但其他地方有定义，是不能用Stokes定理的，但还是有办法的，可以对半球面用的。

youdao

If your vector field is not defined at the origin but defined everywhere else you cannot use this guy, but maybe you can still use, say, the half-sphere, for example.

如果向量场在原点处没有定义，但其他地方有定义，是不能用Stokes定理的，但还是有办法的，可以对半球面用的。

youdao