diagonal morphism

例句：

1. 1. The diagonal line divides the room into two halves.
   对角线将房间分成两半。
2. 2.The diagonal elements of a matrix are used to solve linear equations.
   矩阵的对角线元素用于解决线性方程。
3. 3. In geometry, a diagonal map is a projection that uses only the diagonal elements of a matrix.
   在几何学中，对角线映射是一种仅使用矩阵对角线元素的投影。