companydirectorylist.com  Global Business Directories and Company Directories
Search Business,Company,Industry :


Country Lists
USA Company Directories
Canada Business Lists
Australia Business Directories
France Company Lists
Italy Company Lists
Spain Company Directories
Switzerland Business Lists
Austria Company Directories
Belgium Business Directories
Hong Kong Company Lists
China Business Lists
Taiwan Company Lists
United Arab Emirates Company Directories


Industry Catalogs
USA Industry Directories














  • 矩阵(数学术语)_百度百科
    矩阵,数学术语。在数学中,矩阵(Matrix)是一个按照长方阵列排列的复数或实数集合,最早来自于方程组的系数及常数所构成的方阵。这一概念由19世纪英国数学家凯利首先提出。矩阵是高等代数学中的常见工具,也常见于统计分析等应用数学学科中。在物理学中,矩阵于电路学、力学、光学和
  • 线性代数学习笔记(九)——矩阵运算(一)_矩阵运算k (n)=||n-1n||-CSDN博客
    文章浏览阅读9 3w次,点赞115次,收藏231次。本文深入讲解矩阵的加法、减法、数乘及乘法运算,解析运算规则与特性,探讨矩阵可交换条件,适用于线性代数学习者。




Business Directories,Company Directories
Business Directories,Company Directories copyright ©2005-2012 
disclaimer