message: Tighten tolerance for checking linearity of mapping
diff: @@ -209,7 +209,7 @@ void FiniteElement::CalcPhysLaplacian(ElementTransformation &Trans,
  MFEM_ASSERT(MapType == VALUE, "");
  // Simpler routine if mapping is affine
  - if (Trans.Hessian().FNorm2() < 1e-10)
  + if (Trans.Hessian().FNorm2() < 1e-20)
  {
  CalcPhysLinLaplacian(Trans, Laplacian);
  return;
  