Maybe fix pdf doc

docs/conf.py

@@ -143,23 +143,6 @@ def __getattr__(cls, name):
 
 # -- Options for LaTeX output ---------------------------------------------
 
-latex_elements = {
-    # The paper size ('letterpaper' or 'a4paper').
-    #
-    # 'papersize': 'letterpaper',
-
-    # The font size ('10pt', '11pt' or '12pt').
-    #
-    # 'pointsize': '10pt',
-
-    # Additional stuff for the LaTeX preamble.
-    #
-    # 'preamble': '',
-
-    # Latex figure (float) alignment
-    #
-    # 'figure_align': 'htbp',
-}
 
 imgmath_latex_preamble = r'''
 \usepackage{algorithm}
@@ -184,6 +167,36 @@ def __getattr__(cls, name):
 \newcommand{\Epi}[1]{\underset{\begin{subarray}{c}\tau \sim \pi \end{subarray}}{\E}\left[ #1 \right]}
 '''
 
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    #
+    'preamble': r'''
+\usepackage{algorithm}
+\usepackage{algorithmic}
+\usepackage{amsmath}
+\usepackage{cancel}
+
+
+\newcommand{\E}{{\mathrm E}}
+
+\newcommand{\underE}[2]{\underset{\begin{subarray}{c}#1 \end{subarray}}{\E}\left[ #2 \right]}
+
+\newcommand{\Epi}[1]{\underset{\begin{subarray}{c}\tau \sim \pi \end{subarray}}{\E}\left[ #1 \right]}
+''',
+
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
+}
+
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).