diff --git a/images/shunting-yard.addition-series-partial.svg b/images/shunting-yard.addition-series-partial.svg
new file mode 100644
index 0000000..b5f1466
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+++ b/images/shunting-yard.addition-series-partial.svg
@@ -0,0 +1,1184 @@
+
+
diff --git a/images/shunting-yard.addition-series.svg b/images/shunting-yard.addition-series.svg
new file mode 100644
index 0000000..b5f1466
--- /dev/null
+++ b/images/shunting-yard.addition-series.svg
@@ -0,0 +1,1184 @@
+
+