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ID:12517621
大小:947.00 KB
页数:34页
时间:2018-07-17
《行列式的计算方法毕业论文[]》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、行列式的计算方法摘要行列式最早是由解线性方程而引进的,时至今日,行列式已不止如此,在许多方面都有广泛的应用。本文,我们学习行列式的定义、性质,化为“三角形”行列式,利用行列式的性质,使行列式化简或化为“三角形”行列式计算。利用拉普拉斯展开定理,按某一行(列)或某几行(列)展开,使行列式降级,利用范德蒙行列式的计算公式,利用递推关系等,在计算行列式中最常用的是利用行列式的性质,和按某行(列)展开行列式,而某些方法是针对于某些特殊类型的行列代而言,对一般的级行列式的计算,往往要利用行列式的性质和拉普拉斯展开定理,导出一个递推公式,化为2级或3级行列式,以及化为“三角形”行列式来计算。关键词计算方法
2、线性方程组行列式引言解方程是代数中一个基本问题,特别是在中学代数中,解方程占有重要地位。因此这个问题是读者所熟悉的。譬如说,如果我们知道了一段导线的电阴r,它的两端的电位差v,那么通过这段导线的电流强度i,就可以由关系式25Cr-13Nitypeoraweldingmaterialwithhighnickelcontent.Lowtemperaturesteels,austeniticstainlesssteelandheat-resistantcorrosion-resistanthighalloysteelsandausteniticandnon-austenitedissimilarst
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