diff --git a/notebooks/alt/Octsim/@myss2tf2/myss2tf2.m b/notebooks/alt/Octsim/@myss2tf2/myss2tf2.m
deleted file mode 100644
index 393580e1a22f6fc2ad7d775155171876939bc71c..0000000000000000000000000000000000000000
--- a/notebooks/alt/Octsim/@myss2tf2/myss2tf2.m
+++ /dev/null
@@ -1,10 +0,0 @@
-function [num den] = myss2tf2(A,B,C)
-
-
-n2 =  -A(1,1)*B(2)*C(2)+A(1,2)*B(2)*C(1)+A(2,1)*B(1)*C(2)-A(2,2)*B(1)*C(1); 
-n1 =  B(1)*C(1)+B(2)*C(2);
-d1 =  -A(1,1)-A(2,2);
-d2 =  A(1,1)*A(2,2)-A(1,2)*A(2,1);
-num = [n1 n2];
-den = [1 d1 d2];
-
diff --git a/notebooks/exam example/V6.ipynb b/notebooks/exam example/V6.ipynb
index e84efa5fab5e1097b487486c4073902f5723bdcf..639b288d678905d35b9c1e56919c5b25eb1340c7 100644
--- a/notebooks/exam example/V6.ipynb	
+++ b/notebooks/exam example/V6.ipynb	
@@ -1,5 +1,13 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "1f0f7673-ab1a-413f-b73c-0a248ba39ed9",
+   "metadata": {},
+   "source": [
+    "# <span style='color:OrangeRed'>V6 NORMALFORMEN IN ZUSTANDRAUMDARSTELLUNG</span>"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "9653081e-df65-4ccd-9204-e11c542a469f",
@@ -14,7 +22,7 @@
    "id": "880aa4ff-2004-4875-affc-5759aba8104e",
    "metadata": {},
    "source": [
-    "<img src=\"Bilder/Turbine.png\" alt=\"drawing\" width=\"600\"  height=\"300\"/>"
+    "<img src=\"Turbine.png\" alt=\"drawing\" width=\"600\"  height=\"300\"/>"
    ]
   },
   {
@@ -33,12 +41,12 @@
    "id": "add7e04a-83e6-4685-b845-47137f44a388",
    "metadata": {},
    "source": [
-    "<img src=\"Bilder/TurbineSchema.png\" alt=\"drawing\" width=\"600\"  height=\"300\"/>"
+    "<img src=\"TurbineSchema.png\" alt=\"drawing\" width=\"600\"  height=\"300\"/>"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 1,
    "id": "e050a273-a079-40b9-ac0c-194e5e7f12e8",
    "metadata": {},
    "outputs": [],
@@ -59,7 +67,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 2,
    "id": "ef3d3be5-73cd-48d2-a773-d177b638230a",
    "metadata": {},
    "outputs": [
@@ -83,7 +91,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 3,
    "id": "402f525f-8a64-4584-8d05-dbd5e42e5516",
    "metadata": {},
    "outputs": [
@@ -127,7 +135,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 4,
    "id": "1ed03ed5-3913-4107-95c9-f48e52bb50ee",
    "metadata": {},
    "outputs": [
@@ -158,7 +166,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 5,
    "id": "0d90c253-316f-47ed-9f7b-561ff0ed4868",
    "metadata": {},
    "outputs": [
@@ -202,7 +210,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 6,
    "id": "828217c8-bd90-42da-8b36-9e1f05727a24",
    "metadata": {},
    "outputs": [
@@ -233,7 +241,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 7,
    "id": "058ad783-d553-4bcc-873c-a6f521c16975",
    "metadata": {},
    "outputs": [
@@ -264,7 +272,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 8,
    "id": "0c2d94f8-536c-421a-98ae-69771c0e6ca2",
    "metadata": {},
    "outputs": [
@@ -295,7 +303,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 9,
    "id": "69e7fd06-f71a-48ec-af34-d2e406f9067c",
    "metadata": {},
    "outputs": [
@@ -363,7 +371,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 10,
    "id": "cbf41502-116d-40b5-8fec-39faf2062a03",
    "metadata": {},
    "outputs": [
@@ -373,7 +381,7 @@
      "text": [
       "num =\n",
       "\n",
-      "   0.0044243   0.0037458\n",
+      "   0.0000000   0.0044243   0.0037458\n",
       "\n",
       "den =\n",
       "\n",
@@ -392,7 +400,8 @@
     }
    ],
    "source": [
-    "[num den] = myss2tf2(Fi,Gi,C)\n",
+    "pkg load signal\n",
+    "[num den] = ss2tf(Fi,Gi,C,D)\n",
     "Gz = tf(num,den,Ts)"
    ]
   },