【矩阵乘法入门】给数学不好的人的矩阵乘法模板教程 - 圣人不仁,使草胜豆苗稀。 - 博客频道 - CSDN.NET



今天稍微学习了一下矩阵乘法和应用,我线代也不是很好。。。

矩阵的定义和求解方法在线性代数中已经有所定义,我们在这里采用不太严谨的定义,矩阵就是一个有行有列的数表,体现在计算机中就是二维数组。

  1. class Mat  
  2. {  
  3. public:  
  4.     int mat[15][15];  
  5. };  

这个数表和那个数表可以相加,可以相乘,数表自身也可以求幂。

单位阵定义:主对角线为1,其余都是0的特殊矩阵,线代中用E表示。

  1. void initE()  
  2. {  
  3.     for(int i=0;i<15;i++)  
  4.         E.mat[i][i]=1;  
  5. }  

1、加法:很简单,这个矩阵的对应行列加那个矩阵的对应行列。


Read full article from 【矩阵乘法入门】给数学不好的人的矩阵乘法模板教程 - 圣人不仁,使草胜豆苗稀。 - 博客频道 - CSDN.NET


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