nonsingular code的用法和樣例：
例句
- We turned the singular boundary value problems to nonsingular problems, and presented a numerical method for them.
通過變換將奇異邊值問題轉化為非奇異邊值問題，提供了求解這類奇異邊值問題部分數值解的數值求解方法。 - We call a matrix the generalized cyclic matrix if it can be written the product of a nonsingular diagonal matrix and a cyclic matrix.
摘要可表為非奇異對角矩陣和循環矩陣乘積的矩陣，我們稱其為廣義循環矩陣。
