# Diff of /trunk/doc/user/firststep.tex

revision 574 by lkettle, Thu Mar 2 00:42:53 2006 UTC revision 575 by lkettle, Fri Mar 3 03:33:07 2006 UTC
# Line 69  With the summation convention we can wri Line 69  With the summation convention we can wri
69  - u\hackscore{,ii} =1  - u\hackscore{,ii} =1
70  \label{eq:FirstSteps.1.sum}  \label{eq:FirstSteps.1.sum}
71
72    where $f=1$ in this example.
73
74  On the boundary of the domain $\Omega$ the normal derivative $n\hackscore{i} u\hackscore{,i}$  On the boundary of the domain $\Omega$ the normal derivative $n\hackscore{i} u\hackscore{,i}$
75  of the solution $u$ shall be zero, ie. $u$ shall fulfill  of the solution $u$ shall be zero, ie. $u$ shall fulfill
76  the homogeneous Neumann boundary condition\index{Neumann  the homogeneous Neumann boundary condition\index{Neumann

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