an additional course from freeCodeCamp started.

2026-07-04 00:59:47 +03:00
parent 8901563ae8
commit 884f2d2cc0
13 changed files with 1774 additions and 1 deletions
@@ -0,0 +1,101 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "7af2ca72",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import torch"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "0684c0ff",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "X = torch.tensor([[1.0],[2.0],[3.0]])\n",
+    "y = torch.tensor([[4.0],[5.0],[6.0]])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "1078a0d7",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "w = torch.randn(1, requires_grad=True)\n",
+    "b = torch.randn(1, requires_grad=True)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "6d7c95c5",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0.4485014081001282 3.9534966945648193\n"
+     ]
+    }
+   ],
+   "source": [
+    "for _ in range(100):\n",
+    "    y_pred = X @ w + b\n",
+    "    loss = ((y_pred - y) ** 2).mean()\n",
+    "    loss.backward()\n",
+    "    with torch.no_grad():\n",
+    "        w -= 0.05 * w.grad\n",
+    "        b -= 0.05 * w.grad\n",
+    "        w.grad.zero_()\n",
+    "        b.grad.zero_()\n",
+    "\n",
+    "print(w.item(),b.item())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "b23bda3c",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1b6fcc44",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": ".venv (3.11.15)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.15"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}