From 940bb5e6d18e87ebd89a71c5959c73e8312b3d57 Mon Sep 17 00:00:00 2001
From: Jianyu Liang <jliang@yoichi.r-ccs27.riken.jp>
Date: Fri, 30 Sep 2022 20:56:25 +0900
Subject: [PATCH] delete c

---
 lessons/08_Step_6.ipynb | 38 +++++++++++++-------------------------
 1 file changed, 13 insertions(+), 25 deletions(-)

diff --git a/lessons/08_Step_6.ipynb b/lessons/08_Step_6.ipynb
index 59559a8b..48b78e05 100644
--- a/lessons/08_Step_6.ipynb
+++ b/lessons/08_Step_6.ipynb
@@ -160,9 +160,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -188,20 +186,18 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "for n in range(nt + 1): ##loop across number of time steps\n",
     "    un = u.copy()\n",
     "    vn = v.copy()\n",
     "    u[1:, 1:] = (un[1:, 1:] - \n",
-    "                 (un[1:, 1:] * c * dt / dx * (un[1:, 1:] - un[1:, :-1])) -\n",
-    "                  vn[1:, 1:] * c * dt / dy * (un[1:, 1:] - un[:-1, 1:]))\n",
+    "                 (un[1:, 1:] *  dt / dx * (un[1:, 1:] - un[1:, :-1])) -\n",
+    "                  vn[1:, 1:] *  dt / dy * (un[1:, 1:] - un[:-1, 1:]))\n",
     "    v[1:, 1:] = (vn[1:, 1:] -\n",
-    "                 (un[1:, 1:] * c * dt / dx * (vn[1:, 1:] - vn[1:, :-1])) -\n",
-    "                 vn[1:, 1:] * c * dt / dy * (vn[1:, 1:] - vn[:-1, 1:]))\n",
+    "                 (un[1:, 1:] *  dt / dx * (vn[1:, 1:] - vn[1:, :-1])) -\n",
+    "                 vn[1:, 1:] *  dt / dy * (vn[1:, 1:] - vn[:-1, 1:]))\n",
     "    \n",
     "    u[0, :] = 1\n",
     "    u[-1, :] = 1\n",
@@ -217,9 +213,7 @@
   {
    "cell_type": "code",
    "execution_count": 5,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -245,9 +239,7 @@
   {
    "cell_type": "code",
    "execution_count": 6,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -286,9 +278,7 @@
   {
    "cell_type": "code",
    "execution_count": 7,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -321,9 +311,7 @@
   {
    "cell_type": "code",
    "execution_count": 8,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -439,7 +427,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -453,9 +441,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.2"
+   "version": "3.7.11"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 0
+ "nbformat_minor": 1
 }