diff --git a/nn.test.js b/nn.test.js
index 5a4c01e..145867b 100644
--- a/nn.test.js
+++ b/nn.test.js
@@ -17,7 +17,6 @@ Deno.test("NN.Split", ()=>
     assert(input);
     assert(output);
     assertEquals(input.length, output.length, "data split into equal input and output");
-    console.log(output);
 
     assertEquals(input[0].length, 2, "unpadded input");
     assertEquals(output[0].length, 2, "unpadded output");
@@ -44,7 +43,8 @@ Deno.test("NN.Label", ()=>
 
 Deno.test("NN.Learn", ()=>
 {
-    let error = Learn(input, layers, output, 1000, 0.1);
+    let error = Learn(input, layers, output, 50, 0.2);
+    console.log(error);
     assertEquals(error.length, output.length);
     let total = 0;
     let count = error.length*error[0].length;
diff --git a/nn.ts b/nn.ts
index c2e8ff7..8c07f32 100644
--- a/nn.ts
+++ b/nn.ts
@@ -5,7 +5,8 @@ const Forward = (inData:Cloud.M, inLayers:N):N =>
 {
     let i:number;
     let stages:N = [inData];
-    let process = (index:number):Cloud.M => M.Batch.Sig(M.Batch.Affine(stages[index], inLayers[index]));
+    let nonLinear = (inIndex:number):any=> inIndex >= inLayers.length-1 ? M.Batch.Sig : M.Batch.Rec;
+    let process = (index:number):Cloud.M => nonLinear(index)(M.Batch.Affine(stages[index], inLayers[index]));
 
     for(i=0; i<inLayers.length-1; i++){ stages[i+1] = M.Mutate.Pad(process(i)); }
     stages[i+1] = process(i);
@@ -15,10 +16,11 @@ const Backward = (inStages:N, inLayers:N, inGoals:Cloud.M, inRate:number):N =>
 {
     let i:number;
     let errorBack:Cloud.M = M.Batch.Subtract(inStages[inStages.length-1], inGoals);
+    let nonLinear = (inIndex:number):any=> inIndex >= inLayers.length-1 ? M.Batch.SigDeriv : M.Batch.RecDeriv;
 
     for(i=inLayers.length-1; i>=0; i--)
     {
-        let errorScaled:Cloud.M = M.Batch.Multiply(errorBack, M.Batch.SigDeriv(inStages[i+1]));
+        let errorScaled:Cloud.M = M.Batch.Multiply(errorBack, nonLinear(i)(inStages[i+1]));
         errorBack = M.Batch.Affine(errorScaled, M.Create.Transpose(inLayers[i]));
         errorScaled.forEach((inScaledError:Cloud.V, inIndex:number)=>
         {