例句與造句

1. The proof that the complex general linear group and unitary group have the same homotopy type is by the Gram-Schmidt process, or through the matrix polar decomposition, and carries over to the infinite-dimensional case of separable Hilbert space, basically because the space of upper triangular matrices is contractible as can be seen quite explicitly.
2. It's difficult to find matrix polar decomposition in a sentence. 用matrix polar decomposition造句挺難的