2 files changed, 18 insertions, 14 deletions
diff --git a/src/mind/topology.js b/src/mind/topology.js
index 5d4d52c..8e59c54 100644
--- a/src/mind/topology.js
+++ b/src/mind/topology.js
@@ -116,13 +116,14 @@ function get_value(n, index, input, prev, cache) {
 	}
 
 	const adj = n.adjacency[index];                // get adjacency list
-	const incident = incident_edges(n, adj);	   // get incident edges
+	const incident = incident_edges(n, adj);       // get incident edges
 	const weight = incident.map(x => n.weight[x]); // edge weights
 	const sources = incident                       // get ancestor nodes
 		.map(x => edge_ends(n, x).source);
 	
-	const values = sources            // get the value of each ancestor
-		.map(x => x === index         // if the ancestor is this node
+	// get the value of each ancestor
+	const values = sources
+		.map(x => x === index // if the ancestor is this node
 			? prev[x - n.input_count] // then the value is the previous value
 			: get_value(n, x, input, prev, cache)); // else recurse
 	
diff --git a/src/mind/topology.test.js b/src/mind/topology.test.js
index b272040..9776132 100644
--- a/src/mind/topology.test.js
+++ b/src/mind/topology.test.js
@@ -175,17 +175,20 @@ test('arbitrary hidden neurons', () => {
 		.connect(1, 2, -1)
 		.connect(2, 3, 2)
 
-	expect(n.compute([1], [0, 0])).toEqual([
-		[ Math.tanh (
-			2*Math.tanh( 
-				-1*Math.tanh( 1 ) 
-			)
-		) ],
-		[
-			Math.tanh( -Math.tanh(1) ),
-			Math.tanh(1),
-		],
-	]);
+  const [output, state] = n.compute([1], [0, 0]);
+
+  expect(output).toEqual([
+    Math.tanh(
+      2*Math.tanh(
+        -1*Math.tanh(1)
+      )
+    )
+  ]);
+
+  expect(state).toEqual([
+    Math.tanh(1),
+    Math.tanh( -Math.tanh(1) ),
+  ]);
 });