diff --git a/11-17/lesson.ipynb b/11-17/lesson.ipynb
new file mode 100644
index 0000000..e481c8a
--- /dev/null
+++ b/11-17/lesson.ipynb
@@ -0,0 +1,37 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "a96a3c9e-9a59-4f87-9be5-a21ec02beec9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "using LinearAlgebra"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7da43c78-28c9-4847-ae3b-1c928f79f5a3",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Julia 1.9.4",
+   "language": "julia",
+   "name": "julia-1.9"
+  },
+  "language_info": {
+   "file_extension": ".jl",
+   "mimetype": "application/julia",
+   "name": "julia",
+   "version": "1.9.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}