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principal diagonal的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
the diagonal of a square matrix running from the upper left entry to the lower right entry
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。
