From 5fd79000489515620ec9626e016ad32fd67d9532 Mon Sep 17 00:00:00 2001 From: Peter Munch Date: Wed, 4 Mar 2020 11:04:05 +0100 Subject: [PATCH] Fix indentation in step-8 --- examples/step-8/doc/intro.dox | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/examples/step-8/doc/intro.dox b/examples/step-8/doc/intro.dox index f6c9085163..e714ac5624 100644 --- a/examples/step-8/doc/intro.dox +++ b/examples/step-8/doc/intro.dox @@ -12,13 +12,13 @@ understood as well. @dealiiVideoLecture{19} -In this tutorial program we will want to solve the +In this tutorial program we will want to solve the elastic equations. They are an extension to Laplace's equation with a vector-valued solution that describes the displacement in each space direction of a rigid body which is subject to a force. Of course, the force is also vector-valued, meaning that in each point it has a direction and an -absolute value. +absolute value. One can write the elasticity equations in a number of ways. The one that shows the symmetry with the Laplace equation in the most obvious way is to write it @@ -33,7 +33,7 @@ as where $\mathbf u$ is the vector-valued displacement at each point, $\mathbf f$ the force, and ${\mathbf C}$ is a rank-4 tensor (i.e., it has four indices) that encodes the stress-strain relationship -- in essence, -it represents the +it represents the "spring constant" in Hookes law that relates the displacement to the forces. ${\mathbf C}$ will, in many cases, depend on $\mathbf x$ if the body whose deformation we want to -- 2.39.5