名词
中文翻译：正定矩阵
同义词：
['positive definite matrix', 'positive definite matrix']
例句：
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1. Thepositive definite matrix of the system is given by A = PDP^T, where P is an orthogonal matrix.
系统的正定矩阵由A=PDP^T给出，其中P是一个正交矩阵。
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2. In this case, the positive definite matrix is a square matrix with real numbers as elements.
在这种情况下，正定矩阵是一个实数元素的方阵。
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3.The positive definite matrix is used to solve systems of linear equations.
正定矩阵用于解决线性方程组。