From 2f82f400b182f8f9eac09d9770d3027288b9a089 Mon Sep 17 00:00:00 2001 From: YDZ Date: Sun, 11 Mar 2018 22:06:07 +0800 Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E6=96=87=E7=AB=A0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- contents/Machine_Learning/Gradient_descent.ipynb | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/contents/Machine_Learning/Gradient_descent.ipynb b/contents/Machine_Learning/Gradient_descent.ipynb index f1acf82b..7276e9ed 100644 --- a/contents/Machine_Learning/Gradient_descent.ipynb +++ b/contents/Machine_Learning/Gradient_descent.ipynb @@ -113,7 +113,12 @@ "\n", "在来看看偏导数的定义：\n", "\n", - "$$ f_{x}(x_{0},y_{0}) = \\lim_{\\Delta x \\rightarrow 0} \\frac{f(x_{0} + \\Delta x , y_{0}) - f(x_{0},y_{0})}{\\Delta x} \\\\ f_{y}(x_{0},y_{0}) = \\lim_{\\Delta y \\rightarrow 0} \\frac{f(x_{0} , y_{0} + \\Delta y) - f(x_{0},y_{0})}{\\Delta y} $$ \n", + "$$ \n", + "\\begin{align*}\n", + "f_{x}(x_{0},y_{0}) & = \\lim_{\\Delta x \\rightarrow 0} \\frac{f(x_{0} + \\Delta x , y_{0}) - f(x_{0},y_{0})}{\\Delta x} \\\\ f_{y}(x_{0},y_{0}) & = \\lim_{\\Delta y \\rightarrow 0} \\frac{f(x_{0} , y_{0} + \\Delta y) - f(x_{0},y_{0})}{\\Delta y} \\\\\n", + "\\end{align*}\n", + "$$\n", + "\n", "\n", "![](https://ob6mci30g.qnssl.com/Blog/ArticleImage/68_4.png)\n", "\n", @@ -289,7 +294,7 @@ }, { "cell_type": "code", - "execution_count": 6, + "execution_count": 16, "metadata": {}, "outputs": [], "source": [ @@ -315,16 +320,16 @@ }, { "cell_type": "code", - "execution_count": 7, + "execution_count": 17, "metadata": {}, "outputs": [ { "data": { "text/plain": [ - "" + "" ] }, - "execution_count": 7, + "execution_count": 17, "metadata": {}, "output_type": "execute_result" },