3x3三阶矩阵行列式计算器

a =b=c =
d =e=f =
g =h=i =
矩阵行列式(|A|)=

3x3二阶矩阵行列式计算器

对角线展开：

|a1 b1| =a1b2-a2b1

|a2 b2|

|a1 b1 c1|

|a2 b2 c2|=a1b2c3+b1c2a3+c1a2b3-a3b2c1-b3c2a1-c3a2b1

|a3 b3 c3|