mathematics/2.向量的概念.ipynb

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    "### 一, 向量的概念\n",
    "\n",
    "向量与其运算\n",
    "\n",
    "行向量\n",
    "\n",
    "列向量\n",
    "\n",
    "向量的运算 加法, 数乘,减法, 内积,装置\n",
    "\n",
    "\n",
    "向量的内积\n",
    "\n",
    "![](./img/inner_product.png)\n",
    "\n",
    "\n",
    "<font color=\"red\"> 向量的范数</font>\n",
    "\n",
    "\n",
    "\n",
    "公式: $|x+y|_{\\mbox{p}}$ = $\\Bigg(\\displaystyle \\sum^{n }_{i = 1}{|X_{\\mbox{i}}|}^p\\Bigg)^{\\frac{1}{p}}$\n",
    "\n",
    "\n",
    "\n",
    "一次方 : $|x|_{\\mbox{1}}$ = $\\displaystyle \\sum^{n}_{i=1}{|x_{\\mbox{i}}|}$ 向量和\n",
    "\n",
    "\n",
    "\n",
    "二次方 : $|x|_{\\mbox{2}}$ = $\\sqrt {\\displaystyle \\sum^{n}_{i=1}{|x_{\\mbox{i}}|}^2}$      向量模 相当于长度\n"
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