1.1Positive definite matrix is a very important topic in the

Positive definite matrix is a very important topic in the matrix theory,so the study of the positive matrix and generalized positive definite matrix will have very important significancein the development of Advanced Algebra,Mathematical Analysis,cybernetics andmany……语法上没什么错。不过,为什么这两种矩阵的研究对于线代的发展的意义,是will呢?是不是可以改成plays an important role in the development~这只是我自己的看法。至于many后面的东西就不知道是什么了。 再问： 本文主要对正定矩阵和广义正定矩阵以及它们的应用进行阐述。。。。这句话用英文怎么说 再答： This article mainly demonstrates positive matrix, generalized positive definite matrix and their application。