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1( ) , Jacobi iterative method M D N L U
Ax b
0A M N(det M )
Mx Nx b
Mx Nx b
11
x M Nx M b
1 1 1( k ) ( k ) ( k )
x M Nx M b Mx b
2( ) , Gauss-Seidel iterative method M D L N U
11
31( ) ( ), [( ) ]
Successive Overrelaxation Iterative mathods
M D L N D U
, A D L U