删除 '第一题.ipynb'

第一题.ipynb

@@ -1,120 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "a0a95b0c",
-   "metadata": {},
-   "source": [
-    "import numpy as np\n",
-    "X=np.array([[1.2,1.5,1.8],\n",
-    "          [1.3,1.4,1.9],\n",
-    "          [1.1,1.6,1.7]])\n",
-    "y=np.array([5,10,9]).T\n",
-    "X.dot(y)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "id": "1a728cfe",
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "(3, 3)"
-      ]
-     },
-     "execution_count": 3,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "X.shape"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "id": "e87d7c01",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "1.08 µs ± 11.4 ns per loop (mean ± std. dev. of 7 runs, 1,000,000 loops each)\n"
-     ]
-    }
-   ],
-   "source": [
-    "%timeit X.dot(y)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 11,
-   "id": "e7d8db84",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "41.4 µs ± 971 ns per loop (mean ± std. dev. of 7 runs, 10,000 loops each)\n"
-     ]
-    }
-   ],
-   "source": [
-    "%%timeit\n",
-    "total=[]\n",
-    "for i in range(X.shape[0]):\n",
-    "    each_price = 0\n",
-    "    for j in range(X.shape[1]):\n",
-    "        each_price += X[i,j] * y[j]\n",
-    "        total.append(round(each_price,1))\n",
-    "        total"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "a43f3738",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "\n"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "319800c6",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "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": "3.10.11"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}