From: kirana-bergstrom <kirana.bergstrom@ucdenver.edu>
Date: Tue, 6 Aug 2019 02:30:59 +0000 (-0400)
Subject: Fix for step-20 tutorial: changed point subtraction to tensor distance
X-Git-Tag: v9.2.0-rc1~1316^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85a1abc7ea44870c7add38248d2394606f979399;p=dealii.git

Fix for step-20 tutorial: changed point subtraction to tensor distance
---

diff --git a/examples/step-20/doc/results.dox b/examples/step-20/doc/results.dox
index 12adc83b7e..9afeb6fdaa 100644
--- a/examples/step-20/doc/results.dox
+++ b/examples/step-20/doc/results.dox
@@ -265,8 +265,7 @@ KInverse<dim>::value_list (const std::vector<Point<dim> > &points,
 
       double permeability = 0;
       for (unsigned int i=0; i<centers.size(); ++i)
-        permeability += std::exp(-(points[p]-centers[i]).square()
-                                 / (0.1 * 0.1));
+        permeability += std::exp(-(points[p] - centers[i]).norm_square() / (0.1 * 0.1));
 
       const double normalized_permeability
         = std::max(permeability, 0.005);