名词
中文翻译：副对角线
同义词：
['subordinate diagonal', 'minor diagonal例句：1. The sub-diagonal of the matrix is used to find the eigenvalues.（矩阵的次对角线用于寻找特征值。）']
例句：
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1. The sub-diagonal of the matrix is used to find the eigenvalues.
矩阵的次对角线用于寻找特征值。
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2. The sub-diagonal of the matrix is used to find the eigenvectors.
矩阵的次对角线用于寻找特征向量。
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3.The sub-diagonal of the matrix is used to find the determinant.
矩阵的次对角线用于寻找行列式。