My Blogs
Posts tagged with "LaTeX"
数学分析笔记
Published 2017年11月01日 23:00 by james
$\ln x$ 导数的推导
$$ \frac{d}{dx}\ln x = \lim_{h \to 0} \frac{\ln(x + h) - \ln(x)}{h} = \lim_{h \to 0} \frac{\ln\left(\frac{x + h}{x}\right)}{h} = \lim_{h \to 0} \frac{\ln\left(1 + \frac{h}{x}\right)}{h} $$ …