2.1 Vectors

a = [1:10] 
//show a = 1       2       3       4       5       6       7       8       9       10   
b = [1:2:10]
//show b = 1      3      5      7      9   
x= [1,2,3]
x =           1      2      3     
>>y=[4;5;6]
y =
           4     
           5     
           6     
>>z=[7,8,9]'
z =
           7     
           8     
           9     
>>a=[1:2:10]
a =
           1      3      5      7      9

2.2 Matrices矩阵

rank 级数
det 行列式：det(A) = |A|计算方法：Matrices det calculator 对角线法则
inv 求逆矩阵
eig 矩阵的特征值
diag 构造对角矩阵

inv(A)A = Ainv(A) = E