本次共计算 1 个题目:每一题对 w 求 1 阶导数。
注意,变量是区分大小写的。\[ \begin{equation}\begin{split}【1/1】求函数{(\frac{31}{10} - (w + b))}^{2} + {(\frac{46}{5} - (3w + b))}^{2} + {(\frac{101}{10} - (\frac{17}{5}w + b))}^{2} + {(\frac{59}{5} - (\frac{41}{10}w + b))}^{2} + {(\frac{143}{10} - (\frac{49}{10}w + b))}^{2} + {(\frac{79}{5} - (\frac{26}{5}w + b))}^{2} 关于 w 的 1 阶导数:\\\end{split}\end{equation} \]
\[ \begin{equation}\begin{split}\\解:&\\ &原函数 = \frac{4471}{50}w^{2} + \frac{216}{5}bw - \frac{5313}{10}w + 6b^{2} - \frac{643}{5}b + \frac{78963}{100}\\&\color{blue}{函数的第 1 阶导数:}\\&\frac{d\left( \frac{4471}{50}w^{2} + \frac{216}{5}bw - \frac{5313}{10}w + 6b^{2} - \frac{643}{5}b + \frac{78963}{100}\right)}{dw}\\=&\frac{4471}{50}*2w + \frac{216}{5}b - \frac{5313}{10} + 0 + 0 + 0\\=&\frac{4471w}{25} + \frac{216b}{5} - \frac{5313}{10}\\ \end{split}\end{equation} \]你的问题在这里没有得到解决?请到 热门难题 里面看看吧!