合并分支 'mengxia' 到 'caorunzhe'

Mengxia

查看合并请求 !178

Chapter2/chapter2.tex

@@ -154,6 +154,14 @@ F(x)=\int_{-\infty}^x f(x)\textrm{d}x
 \label{eq:2-6}
 \end{eqnarray}
 
+\parinterval 链式法则经常被用于对事件序列的建模。比如，事件A依赖于事件B，事件B依赖于事件C，应用链式法有：
+
+\begin{eqnarray}
+\funp{P}(A,B,C) & = & \funp{P}(A \mid B,C)\funp{P}(B \mid C)\funp{P}(C) \nonumber \\
+                & = & \funp{P}(A \mid B)\funp{P}(B \mid C)\funp{P}(C)
+\label{eq:chain-rule-example}
+\end{eqnarray}
+
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