Extend arithmetic example

Author: jan-janssen

example_workflows/arithmetic/workflow.json

@@ -3,15 +3,17 @@
   "nodes": [
     {"id": 0, "type": "function", "value": "workflow.get_prod_and_div"},
     {"id": 1, "type": "function", "value": "workflow.get_sum"},
-    {"id": 2, "type": "input", "value": 1, "name": "x"},
-    {"id": 3, "type": "input", "value": 2, "name": "y"},
-    {"id": 4, "type": "output", "name": "result"}
+    {"id": 2, "type": "function", "value": "workflow.get_square"},
+    {"id": 3, "type": "input", "value": 1, "name": "x"},
+    {"id": 4, "type": "input", "value": 2, "name": "y"},
+    {"id": 5, "type": "output", "name": "result"}
   ],
   "edges": [
-    {"target": 0, "targetPort": "x", "source": 2, "sourcePort": null},
-    {"target": 0, "targetPort": "y", "source": 3, "sourcePort": null},
+    {"target": 0, "targetPort": "x", "source": 3, "sourcePort": null},
+    {"target": 0, "targetPort": "y", "source": 4, "sourcePort": null},
     {"target": 1, "targetPort": "x", "source": 0, "sourcePort": "prod"},
     {"target": 1, "targetPort": "y", "source": 0, "sourcePort": "div"},
-    {"target": 4, "targetPort": null, "source": 1, "sourcePort": null}
+    {"target": 2, "targetPort": "x", "source": 1, "sourcePort": null},
+    {"target": 5, "targetPort": null, "source": 2, "sourcePort": null}
   ]
 }

example_workflows/arithmetic/workflow.py

@@ -4,3 +4,7 @@ def get_prod_and_div(x, y):
 
 def get_sum(x, y):
     return x + y
+
+
+def square(x):
+    return x ** 2