symmetric matrix的用法和樣例：
例句
- If a symmetrical matrix is positive definite, the determinants of all its minors are also positive.
如果對稱(chēng)矩陣是為正定者，它的所有子式的行列式也都是正的。 - We extend Hua's fundamental theorems of the geometry of self-adjoint matrices and symmetric matrices to the infinite-dimensional case.
摘要本文分別將華氏自伴矩陣幾何與對稱(chēng)矩陣幾何基本定理推廣到無(wú)限維的情形。
