替换 learning-rate.tex

Book/Chapter7/Figures/learning-rate.tex

 \begin{center}
-  \begin{tikzpicture}
+  \begin{tikzpicture}[scale=1.3]
     \footnotesize{
       \begin{axis}[
       width=.40\textwidth,
       height=.30\textwidth,
       legend style={at={(0.60,0.08)}, anchor=south west},
-      xlabel={\footnotesize{更新次数（10k）}},
-      ylabel={\footnotesize{学习率 （\scriptsize{$10^{-3}$）}}},
+      xlabel={\scriptsize{更新次数（10k）}},
+      ylabel={\scriptsize{学习率 （$10^{-3}$）}},
       ylabel style={yshift=-1em},xlabel style={yshift=0.0em},
       yticklabel style={/pgf/number format/precision=2,/pgf/number format/fixed zerofill},
       ymin=0,ymax=2.2, ytick={0.5, 1, 1.5, 2},