lesson 22/11, heavy ball method not translated yet

11-17/lesson.ipynb

@@ -12,11 +12,56 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 2,
    "id": "7da43c78-28c9-4847-ae3b-1c928f79f5a3",
    "metadata": {},
-   "outputs": [],
-   "source": []
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "4-element Vector{Float64}:\n",
+       "  0.18246182305194636\n",
+       " -0.3668991739223996\n",
+       "  0.20260186844658193\n",
+       " -0.9242616501263348"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "A = randn(4, 4)\n",
+    "y = randn(4)\n",
+    "\n",
+    "x = A \\ y"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "ae9b165b-aac9-4b2a-8575-4646e0627098",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "4-element Vector{Float64}:\n",
+       "  0.0\n",
+       " -1.1102230246251565e-16\n",
+       " -1.1102230246251565e-16\n",
+       " -8.326672684688674e-17"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "A*x - y"
+   ]
   }
  ],
  "metadata": {