Matlab

1. 矩阵的输入

右值是用方括号表示；

, 逗号或空格分隔元素     ; 分号分隔行    

>> A = [-1, 6; 7, 11]
A =
    -1     6
     7    11

2. 矩阵的加减

>> C = A + B;
>> D = A  - B;

3. 矩阵的共轭转置

>> B = A';

4. 矩阵的转置

>> B = A.';

5. 矩阵与矩阵相乘

>> A = [12 3; -1 6]; B = [4 2; 9 1];
>> A*B
ans =
      75   27
      50   4

6. 矩阵点乘

>> A.*B
ans =
    48     6
    -9     6

7. 矩阵点除

>> A = [2 4 6 8]; B = [2 2 3 1];
>> C = A ./ B
C =
     1     2     2     8

  >> C = A . B
  C =
      1.0000  0.5000  0.5000  0.1250

8. 矩阵元素平方

>> B = [2 4; -1 6];
>> B.^2
ans =
     4    16
     1    36