Bim package: Difference between revisions

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43 bytes added ,  19 July 2012
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We want to solve the equation
We want to solve the equation


<math>  -\mathrm{div}\ ( \alpha\ \gamma\ ( \eta\ \nabla u - \beta\ u ) ) + \delta \zeta\ u = f g </math>
<math>  -\mathrm{div}\ ( \varepsilon \nabla u(x, y) - \nabla \varphi(x,y)\ u(x, y) ) ) + u(x, y) = 1 </math>
 
<math>  \varphi(x, y) = x + y </math>




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