From 50faba856cea56d0ed200e473361a227f57a7cce Mon Sep 17 00:00:00 2001 From: Wolfgang Bangerth Date: Mon, 17 Apr 2023 21:49:37 -0600 Subject: [PATCH] Replace \atan by \text{atan} because the former is apparently not part of MathJAX. --- examples/step-7/doc/intro.dox | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/examples/step-7/doc/intro.dox b/examples/step-7/doc/intro.dox index 726d570fff..f70cf04e0e 100644 --- a/examples/step-7/doc/intro.dox +++ b/examples/step-7/doc/intro.dox @@ -191,7 +191,7 @@ denote $\bar u|_{\Gamma_1}=g_1$ and ${\mathbf n}\cdot \nabla\bar u|_{\Gamma_2}=g $f = -\Delta \bar u + \bar u$ is. Since the derivative of an exponential is relatively straightforward to compute, the choice above satisfies this requirement, whereas a function of the kind - $\bar u(\mathbf x) = \atan\left(\|\mathbf x\|^{\|\mathbf x\|}\right)$ + $\bar u(\mathbf x) = \text{atan}\left(\|\mathbf x\|^{\|\mathbf x\|}\right)$ would have presented greater difficulties. (ii) You *don't* want $\bar u$ be a polynomial of low degree. That is because if you choose the polynomial degree of your finite element -- 2.39.5