jordan matrix的用法和樣例：
例句
- Moreover, when the matrix involved in the two-sided obstacle problem is a symmetric and nondegenerate matrix, the sequence converges to a solution of the problem.
並且，當矩陣為非退化對稱矩陣時，該序列收斂到雙邊障礙問題的解。 - Jordan always invites his friends over to his house.
喬丹總會請朋友到他家做客。 - The two girls and Jordan leaned together confidentially.
兩個小姑娘和喬丹詭秘地把頭靠在一起。
