diff --git a/Unity & C#/P.3 The Dot Product.cs b/Unity & C#/P.3 The Dot Product.cs
new file mode 100644
index 0000000..0e00e7c
--- /dev/null
+++ b/Unity & C#/P.3 The Dot Product.cs	
@@ -0,0 +1,48 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Script3 : MonoBehaviour
+{
+    // Declare Variables
+    public float[] inputs;
+    public float[][] weights;
+    public float[] biases;
+    public float[] outputs;
+    [HideInInspector]public List<float> results;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        // Set variable values
+        inputs = new float[] { 1f, 2f, 3f, 2.5f };
+        weights = new float[][]{new float[] { 0.2f, 0.8f, -0.5f, 1.0f },
+                                new float[] { 0.5f, -0.91f, 0.26f, -0.5f },
+                                new float[] { -0.26f, -0.27f, 0.17f, 0.87f }};
+        biases = new float[] { 2, 3, 0.5f };
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        // Update outputs every frame. Outputs displayed in inspector for Game Object.
+        // Changing values of variables updates outputs.
+        outputs = LayerResults(weights, inputs, biases);
+    }
+
+    // Without adding external resources, create method to calculate Dot Product and add the bias.
+    private float[] LayerResults(float[][] weights, float[] inputs, float[] biases)
+    {
+        results.Clear();
+        for (int i = 0; i < weights.Length; i++)
+        {
+            float sum = 0;
+            for (int j = 0; j < weights[i].Length; j++)
+            {
+                sum += weights[i][j] * inputs[j];
+            }
+            sum += biases[i];
+            results.Add(sum);
+        }
+        return results.ToArray();
+    }
+}