英语达人帮帮忙，胜造七级浮屠！翻译一下这段话，论文中用到的，不要谷歌翻译、百度金山啥的，都试过……

Question

矩阵分解对矩阵理论及近代计算数学的发展起了关键作用。20世纪年代后以吉文斯与豪斯霍尔德变换发展起来的矩阵QR分解是其中主要的一部分，在数值代数和最优化问题的解法中起着重要作用。本文就矩阵QR分解的一些方法以及改进和基于矩阵QR分解的应用进行了了解和探究。

Answer 1

你要懂英文，自然知道该采纳我的。

Matrix decomposition has played a key role in the development of matrix theory and modern computing mathematics.
20世纪（几十？假设是70年代吧） In the late 70s of 20th century，the matrix QR decomposition jointly developed by Givens and Householder has been a fundamental part of it,it's of great importance in the solution of Numerical Algebra and optimization problem.
In this paper,the matrix QR decomposition methods and improvements,in addition to the applications based on the matrix QR decomposition theory have been approached and explored.

Answer 2

Matrix decomposition of matrix theory and the development of modern computing mathematics plays a key role. 20 century s to JiWenSi and house after the placement transform developed QR matrix decomposition is one of the main part, in numerical algebra and optimization method plays an important role. This paper QR decomposition of matrix method and some improvement based on matrix and the decomposition of the QR application in the understanding and explored.

Answer 3

Matrix decomposition of matrix theory and the development of modern computing mathematics plays a key role. 20 century s to JiWenSi and house after the placement transform developed QR matrix decomposition is one of the main part, in numerical algebra and optimization method plays an important role. This paper QR decomposition of matrix method and some improvement based on matrix and the decomposition of the QR application in the understanding and explored.

Answer 4

这个建议作者自己先做个大致的翻译，然后贴在这里我们给你改改。你总不能一句话都不会翻译吧？

追问

Matrix decomposition of matrix theory and modern computational mathematics played a key role in the development. In 20th Century, Vince and Householder transform to development of QR decomposition of matrix is the main part in numerical linear algebra, and optimization solution plays an important role in. In this paper, some methods of matrix QR decomposition as well as the improvement