diff --git a/1-5000.png b/1-5000.png
new file mode 100644
index 0000000..4ad8598
Binary files /dev/null and b/1-5000.png differ
diff --git a/1-5000.svg b/1-5000.svg
new file mode 100644
index 0000000..fc858b5
--- /dev/null
+++ b/1-5000.svg
@@ -0,0 +1,5003 @@
+
\ No newline at end of file
diff --git a/figures/3d-nc-fd-convergence.png b/figures/3d-nc-fd-convergence.png
index c809d0d..b928244 100644
Binary files a/figures/3d-nc-fd-convergence.png and b/figures/3d-nc-fd-convergence.png differ
diff --git a/figures/3d-nc-fd-convergence.svg b/figures/3d-nc-fd-convergence.svg
index 6836c9f..7034859 100644
--- a/figures/3d-nc-fd-convergence.svg
+++ b/figures/3d-nc-fd-convergence.svg
@@ -1,16 +1,16 @@
-