rename PlanarRotation -> JacobiRotation
diff --git a/doc/snippets/Jacobi_makeJacobi.cpp b/doc/snippets/Jacobi_makeJacobi.cpp
index 5c0ab73..0cc331d 100644
--- a/doc/snippets/Jacobi_makeJacobi.cpp
+++ b/doc/snippets/Jacobi_makeJacobi.cpp
@@ -1,6 +1,6 @@
 Matrix2f m = Matrix2f::Random();
 m = (m + m.adjoint()).eval();
-PlanarRotation<float> J;
+JacobiRotation<float> J;
 J.makeJacobi(m, 0, 1);
 cout << "Here is the matrix m:" << endl << m << endl;
 m.applyOnTheLeft(0, 1, J.adjoint());