diff --git a/docs/source/ex1.ipynb b/docs/source/ex1.ipynb
index acc55d0..461c56f 100644
--- a/docs/source/ex1.ipynb
+++ b/docs/source/ex1.ipynb
@@ -24,9 +24,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 73,
+   "execution_count": 1,
    "metadata": {
-    "tags": ["remove_cell", ]
+    "tags": []
    },
    "outputs": [],
    "source": [
@@ -49,7 +49,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 74,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -78,7 +78,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 75,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -121,7 +121,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 76,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -132,7 +132,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 77,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -178,7 +178,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 78,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -225,7 +225,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -234,7 +234,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 80,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -277,7 +277,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 81,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -327,7 +327,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 82,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
diff --git a/docs/source/ex2.ipynb b/docs/source/ex2.ipynb
index 502f94e..9817b53 100644
--- a/docs/source/ex2.ipynb
+++ b/docs/source/ex2.ipynb
@@ -26,7 +26,7 @@
    "cell_type": "code",
    "execution_count": 1,
    "metadata": {
-    "tags": ["remove_cell", ]
+    "tags": []
    },
    "outputs": [],
    "source": [