摘要
Weierstrass定理是数学分析中关于连续函数的一个重要性质 ,通过构造一个在某区间上用矩阵表示的连续实值函数 ,使它在该区间上满足Weierstrass定理的条件来证明矩阵的行列式大于零 ,同时得到了一些有用的结论。
The Weierstrass theorem expresses an important property of real_valued function in mathematical analysis. It's proved that the determinant of a matrix is greater than zero by constructing a continuous real_valued function representing in the form of a matrix in a certain closed in_terval, and rendering this function meet the conditions of Weierstrass theorem in this interval. Thereby, some other useful conclusions are obtained.