some fix for latest version

Author: jurgen-lentz

notebooks/05/cutting-stock.ipynb

@@ -767,7 +767,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 10,
+      "execution_count": null,
       "metadata": {
         "id": "iHVQ3XUGieiJ"
       },
@@ -843,7 +843,7 @@
         "\n",
         "def generate_pattern_dual(stocks, finish, patterns):\n",
         "    m = generate_pattern_dual_prob\n",
-        "\n",
+        "    m.eval(\"reset data;\")\n",
         "    m.set[\"F\"] = list(finish.keys())\n",
         "    m.set[\"P\"] = list(range(len(patterns)))\n",
         "\n",

notebooks/09/markowitz_portfolio_with_chance_constraint.ipynb

@@ -21,7 +21,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 1,
+      "execution_count": null,
       "id": "5da22c67-5c34-4c3a-90a4-61222899e855",
       "metadata": {
         "colab": {
@@ -46,7 +46,7 @@
         "# Install AMPL and solvers\n",
         "%pip install -q amplpy pandas numpy scipy\n",
         "\n",
-        "SOLVER = \"scip\"\n",
+        "SOLVER = \"highs\"\n",
         "\n",
         "from amplpy import AMPL, ampl_notebook\n",
         "\n",