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A question in LU-SGS method

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Old   October 12, 2007, 12:20
Default A question in LU-SGS method
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In LU-SGS method,we update the variable by sweeping along the i+j+k=constant plane ,but why not use this way below:

do i=2,imax do j=2,jmax

do k=2,kmax Q(i,j,k)=function(Q(i-1,j,k),Q(i,j-1,k),Q(i,j,k-1))

end do end do end do

has anyone can tell me why not use this way?
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