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Line 17: Line 17:  
l_{21}& l_{22}
 
l_{21}& l_{22}
 
\end{bmatrix}\begin{bmatrix}
 
\end{bmatrix}\begin{bmatrix}
u_{21}      & u_{12}      \\
+
u_{11}      & u_{12}      \\
 
0 & u_{22}
 
0 & u_{22}
 
\end{bmatrix}</math>
 
\end{bmatrix}</math>
 
*For 3x3 matrix,
 
*For 3x3 matrix,
 +
<math>\begin{bmatrix}
 +
a_{11}      & a_{12} & a_{13}      \\
 +
a_{21}& a_{22} & a_{23}\\
 +
a_{31} & a_{32} & a_{33}
 +
\end{bmatrix}=\begin{bmatrix}
 +
l_{11}      & 0  &0    \\
 +
l_{21}& l_{22} &0 \\
 +
l_{31}& l_{32} & l_{33}
 +
\end{bmatrix}\begin{bmatrix}
 +
u_{11}      & u_{12}  &u_{13}    \\
 +
0 & u_{22} &u_{23} \\
 +
0 & 0 & u_{33}
 +
\end{bmatrix}</math>
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