[计] 三对角线距阵, 三对角矩阵

tri-diagonal matrix的用法和样例：

例句

The square matrix is called a diagonal matrix.该方矩阵称为对角矩阵。
We call a matrix the generalized cyclic matrix if it can be written the product of a nonsingular diagonal matrix and a cyclic matrix.摘要可表为非奇异对角矩阵和循环矩阵乘积的矩阵，我们称其为广义循环矩阵。

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