曲靖师范学院学报 ›› 2018, Vol. 37 ›› Issue (6): 17-21.

• 数学研究 • 上一篇    下一篇

线性代数中向量组的线性表示、极大无关组及线性方程组快速求解

晏建学1,王云秋2   

  1. 1. 云南财经大学 商学院,云南 昆明 650221;
    2. 云南财经大学 统计与数学学院,云南 昆明 650221
  • 收稿日期:2018-05-16 出版日期:2018-11-26
  • 作者简介:晏建学,云南财经大学商学院高级实验师,主要从事计算机与数学的交叉应用研究.

Linear Representation of Vector Group, Quick Solutions to Maximal Independent Group and Linear Equations in Linear Algebra

Yan Jianxue, Wang Yunqiu   

  1. 1.School of Business, Yunnan University of Finance and Economics,Kunming Yunnan 650221, China;
    2. School of Statistics and Mathematics, Yunnan University of Finance and Economics, Kunming Yunnan 650221, China
  • Received:2018-05-16 Published:2018-11-26

摘要: 通过对线性代数中“向量与向量组的线性表示、向量组的极大无关组及线性方程组求解”过程加以改进,将传统的“对列向量构成的矩阵或线性方程组增广矩阵①用行初等变换化成阶梯形;②再用初等行变换化成行简化阶梯形”的两步求解过程简化为“对列向量构成的矩阵转置或线性方程组增广矩阵转置①用行初等变换化成阶梯形”一步求解,不仅节约了一定的工作量,还有效地降低了求解难度.

关键词: 向量组, 极大无关组, 线性方程组, 矩阵, 转置, 初等行变换, 阶梯形, 行简化阶梯形

Abstract: In this paper, the two-step solution process is simplified to the one-step process, in which the transpose matrix of column vectors or the transpose augmented matrix of linear equations are transformed into a ladder by the means of elementary row transformation. The improvement not only reduces a certain amount of the workload but also lowers the difficulty of seeking solutions.

Key words: Vector group, Maximal independent group, Linear equations, Matrix, Transpose, Elementary row transformation, Ladder-shaped matrix, Simplified row ladder matrix

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