单词：principal diagonal
principal diagonal的用法和样例：
例句
- A determinant whose only nonzero elements occur in square blocks centered about the principal diagonal is in block-diagonal form.仅有的非零元素集中于主对角线的方块中的行列式是分块对角形式的。
- main diagonal衷角线,主斜杆...
单词：principal diagonal 相关文章
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