From: Marc Fehling <mafehling.git@gmail.com>
Date: Fri, 3 Dec 2021 00:43:09 +0000 (-0700)
Subject: Adjust assert.
X-Git-Tag: v9.4.0-rc1~774^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F13026%2Fhead;p=dealii.git

Adjust assert.
---

diff --git a/include/deal.II/physics/vector_relations.h b/include/deal.II/physics/vector_relations.h
index efc263447c..76c8e3a6a6 100644
--- a/include/deal.II/physics/vector_relations.h
+++ b/include/deal.II/physics/vector_relations.h
@@ -121,8 +121,8 @@ Physics::VectorRelations::signed_angle(const Tensor<1, spacedim, Number> &a,
 
   Assert(std::abs(axis.norm() - 1.) < 1.e-12,
          ExcMessage("The axial vector is not a unit vector."));
-  Assert(std::abs(axis * a) < 1.e-12 * b.norm() &&
-           std::abs(axis * b) < 1.e-12 * a.norm(),
+  Assert(std::abs(axis * a) < 1.e-12 * a.norm() &&
+           std::abs(axis * b) < 1.e-12 * b.norm(),
          ExcMessage("The vectors are not perpendicular to the axial vector."));
 
   const Number dot = a * b;