# Inverse matrix (order 3)

## Calculates the inverse matrix of a square matrix of order 3.

 $\normal A={\left[\begin{array}\vspace{10} a_{\small 11}& a_{\small 12}& a_{\small 13}\\\vspace{10} a_{\small 21}& a_{\small 22}& a_{\small 23}\\a_{\small 31}& a_{\small 32}& a_{\small 33}\\\end{array}\right]}\hspace{20}A A^{\small -1} =A^{\small -1}A=I\\$
 (enter a data after click each cell in matrix) matrix A {aij}
 6dgt10dgt14dgt18dgt22dgt26dgt30dgt34dgt38dgt42dgt46dgt50dgt Inverse matrix A-1
 $\normal AA^{\small -1} =LUA^{\small -1}=I\\[10]{A^{\small -1}=U^{\small -1}(L^{\small -1}I)\\$
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