diff --git a/Chapter 13/matrix effect b/Chapter 13/matrix effect
deleted file mode 100644
index fd60d88..0000000
--- a/Chapter 13/matrix effect	
+++ /dev/null
@@ -1,37 +0,0 @@
-<!doctype html>
-<html>
-<head>
-    <title>Canvas HTML5</title>
-</head>
-<body>
-    <div class="output"></div>
-    <script>
-        const canvas = document.createElement("canvas");
-        const ctx = canvas.getContext("2d");
-        canvas.setAttribute("width", "500");
-        canvas.setAttribute("height", "300");
-        document.body.prepend(canvas);
-        const colVal = [];
-        for(let x=0;x<50;x++){
-            colVal.push(0);
-        }
-        function matrix() {
-            ctx.fillStyle = "rgba(0,0,0,.05)";
-            ctx.fillRect(0, 0, canvas.width, canvas.height);
-            ctx.fillStyle = "green";
-            colVal.map((posY, index) => {
-                let output = Math.random()<0.5?0:1;
-                let posX = (index * 10) + 10;
-                ctx.fillText(output, posX, posY);
-                if (posY > 100 + Math.random() * 300) {
-                    colVal[index] = 0;
-
-                } else {
-                    colVal[index] = posY + 10;
-                }
-            })
-        }
-        setInterval(matrix, 50);
-    </script>
-</body>
-</html>
