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revision 564 by jgs, Wed Nov 9 02:02:19 2005 UTC revision 565 by gross, Mon Feb 27 00:04:17 2006 UTC
# Line 73  derived from \eqn{WAVE impact}. Line 73  derived from \eqn{WAVE impact}.
73    
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75  In each time step we have to solve this problem to get the acceleration $a^{(n)}$ and we will  In each time step we have to solve this problem to get the acceleration $a^{(n)}$ and we will
76  use the \LinearPDE class of the \linearPDEsPack to do so. The general form of the PDE defined through  use the \LinearPDE class of the \linearPDEs to do so. The general form of the PDE defined through
77  the \LinearPDE class is discussed in \Sec{SEC LinearPDE}. The form which are relevant here are    the \LinearPDE class is discussed in \Sec{SEC LinearPDE}. The form which are relevant here are  
78  \begin{equation}\label{WAVE dyn 100}  \begin{equation}\label{WAVE dyn 100}
79  D\hackscore{ij} u\hackscore{j} = - X\hackscore{ij,j}\; .  D\hackscore{ij} u\hackscore{j} = - X\hackscore{ij,j}\; .

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