In contrast, try computing the hundredth power of a non diagonal matrix.

相反 试着计算一个非对角矩阵的百分之一次方。

There are a lot of things that make diagonal matrices much nicer to work with.

有很多东西可以使对角矩阵更好地工作。

Any time a matrix has zeroes everywhere other than the diagonal, it's called, reasonably enough, a diagonal matrix.

任何时候 一个矩阵除了对角线以外都是0 它就叫做对角线矩阵。