From: Lucas Campos Date: Wed, 6 Sep 2017 15:48:48 +0000 (+0200) Subject: Add missing div on note on step-44 X-Git-Tag: v9.0.0-rc1~1112^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F5036%2Fhead;p=dealii.git Add missing div on note on step-44 --- diff --git a/examples/step-44/doc/intro.dox b/examples/step-44/doc/intro.dox index 2940deedb9..3a0937063e 100644 --- a/examples/step-44/doc/intro.dox +++ b/examples/step-44/doc/intro.dox @@ -434,7 +434,7 @@ The third is the definition of the pressure $\widetilde{p}$. @note The simplified single-field derivation ($\mathbf{u}$ is the only primary variable) below makes it clear how we transform the limits of integration to the reference domain: @f{align*} -\int_{\Omega}\delta \mathbf{u} \cdot [ \boldsymbol{\sigma} + \mathbf{b}^\text{p}]~\mathrm{d}v +\int_{\Omega}\delta \mathbf{u} \cdot [\textrm{div}\ \boldsymbol{\sigma} + \mathbf{b}^\text{p}]~\mathrm{d}v &= \int_{\Omega} [-\mathrm{grad}\delta \mathbf{u}:\boldsymbol{\sigma} + \delta \mathbf{u} \cdot\mathbf{b}^\text{p}]~\mathrm{d}v + \int_{\partial \Omega} \delta \mathbf{u} \cdot \mathbf{t}^\text{p}~\mathrm{d}a \\