User Manual


 •Iden󰄵
 •Ref 
 •Rref 

󰁖󰄵󰂾󰅰
u 矩阵算术运算 [OPTN] - [MAT] - [Mat]/[Iden]
例1 下述两个矩阵相加（矩阵A + 矩阵B）：





  AK21av+
  1alw

例2 将例1中的两个矩阵（矩阵A × 矩阵B）相乘

  AK21av*
  1alw

•󰂾󰄵󰁖󰄵

•󰄵× 󰄵󰄵󰁱󰄵󰃖
u 行列式 [OPTN] - [MAT] - [Det]
示例 求下述矩阵的行列式：


  矩阵A
=

1 2 3
4 5 6
−1 −2 0


  K231
  avw

•󰅛󰁖󰄵󰁱󰄵
•× 󰄵


| A | =
a
11
a
12
=a
11
a
22
–a
12
a
21
a
21
a
22
•× 󰄵


= a
11
a
22
a
33
+ a
12
a
23
a
31
+ a
13
a
21
a
32
– a
11
a
23
a
32
– a
12
a
21
a
33
– a
13
a
22
a
31
a
11
a
12
a
13
a
21
a
22
a
23
a
31
a
32
a
33
|A| =
A =
1 1
2 1
2 3
2 1
B =