normX -> xnorm

dune/tectonic/localfriction.hh

@@ -69,17 +69,17 @@ template <int dimension> class LocalFriction {
     \f}
   */
   void addHessian(VectorType const &x, MatrixType &A) const {
-    double const normX2 = x.two_norm2();
-    double const normX = std::sqrt(normX2);
-    double const normX3 = normX * normX2;
+    double const xnorm2 = x.two_norm2();
+    double const xnorm = std::sqrt(xnorm2);
+    double const xnorm3 = xnorm * xnorm2;
 
-    double const H1 = func->rightDifferential(normX);
-    double const H2 = func->second_deriv(normX);
+    double const H1 = func->rightDifferential(xnorm);
+    double const H2 = func->second_deriv(xnorm);
 
-    // TODO: potential optimisation: factor out (H1 / normX), get rid of normX3
-    double const weight1 = H2 / normX2;
-    double const weight2 = -H1 / normX3;
-    double const weight3 = H1 / normX;
+    // TODO: potential optimisation: factor out (H1 / xnorm), get rid of xnorm3
+    double const weight1 = H2 / xnorm2;
+    double const weight2 = -H1 / xnorm3;
+    double const weight3 = H1 / xnorm;
 
     // {{{ In what follows, we handle the case 0 * (1/x) = 0 with x
     // close to 0.