頁數往下、往下、往下

Question

我有\pagestyle{fancy}通常的設定。我的章節名稱有時是如此之大（在頂線上方），以至於不知何故頁數（位於頁腳）隨著每一頁不斷下降，直到消失。在第一頁看到編號和頁尾之間大約有 2 厘米，在第 100 頁上看到 1 毫米，而最後一頁什麼都沒有，這是很荒謬的。

%document information
\documentclass[10pt,a4paper]{book}

% packages
\usepackage{cmap}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[russian]{babel}
\usepackage{amsfonts,longtable} 
\usepackage{indentfirst}
\usepackage{amsmath,amsthm,amstext,amssymb,amscd} 
\usepackage{fancyhdr}                           
\usepackage{hyperref}
\usepackage[margin=2.3cm, footskip = 0.5 cm]{geometry}
\usepackage{epigraph}
\usepackage{tikz}                                   
\usepackage{cancel}
\usepackage{upgreek}
\usepackage{bm}                         
\usepackage{xcolor}
\definecolor{darkblue}{rgb}{0,0,.6}

% page settings
\frenchspacing 
\parindent=1cm
\sloppy
\fancyfoot[C]{\thepage}

% other settings
\pdfcompresslevel=9
\pdfobjcompresslevel=9

\hypersetup{
  pdfsubject         = {Matan},
  pdfstartview       = {FitH},
  pdfborder          = {0 0 0},
  bookmarksopen      = true,
  bookmarksnumbered  = true,
  bookmarksopenlevel = 2,
  colorlinks = true,     linkcolor  = darkblue,
}


%own commands

\begin{document}

\pagestyle{plain}
\frontmatter
\tableofcontents

\mainmatter
\pagestyle{fancy}

\setcounter{chapter}{0}
\foreach \n in {1,...,36}{\include{chapters/chapter\n}}

\end{document}

不要責怪我在未來的數學書中使用有關阿姆的文本進行測試。 :)

附言。裡面chapters/chapter\n只有關於阿姆的文本，沒有任何命令\chapter{}

Answer 1

有一個關於headheight太小的明確警告（請參閱.log文件。）根據當前很長的章節標題，建議將標題高度至少設定為 35pt 左右。

在我看來，footskip這裡太小了，我將其值增加到1cm。

現在頁碼位置保持固定。

%document information
\documentclass[10pt,a4paper]{book}

% packages
\usepackage{cmap}
\usepackage[utf8]{inputenc}
\usepackage[T2A]{fontenc}
\usepackage[russian]{babel}
\usepackage{amsfonts,longtable} 
\usepackage{indentfirst}
\usepackage{amsmath,amsthm,amstext,amssymb,amscd} 
\usepackage{fancyhdr}                           
\usepackage[includeheadfoot,margin=2.3cm, footskip = 1 cm,headheight=36pt]{geometry}
\usepackage{epigraph}
\usepackage{tikz}                                   
\usepackage{cancel}
\usepackage{upgreek}
\usepackage{bm}                         
\usepackage{xcolor}
\definecolor{darkblue}{rgb}{0,0,.6}

% page settings
\frenchspacing 
\parindent=1cm
\sloppy
\fancyfoot[C]{\thepage}

% front page
\author{Андрей Диденко}
\title{Подготовка к ГОСу по МатАнализу
\date{16 Апреля 2016}.
\LaTeX}
\usepackage{hyperref}    
% other settings
\pdfcompresslevel=9
\pdfobjcompresslevel=9

\hypersetup{
  pdftitle           = {GOS_MatAn},
  pdfauthor          = {Didenko Andre},
  pdfsubject         = {Matan},
  pdfstartview       = {FitH},
  pdfborder          = {0 0 0},
  bookmarksopen      = true,
  bookmarksnumbered  = true,
  bookmarksopenlevel = 2,
  colorlinks = true,     linkcolor  = darkblue,
}


%own commands

\usepackage{blindtext}

\begin{document}

\pagestyle{plain}
\frontmatter
\maketitle
\epigraph{Дорогой моей и любимой Настеньке посвящается}{Диденко А.А.}
\tableofcontents

\mainmatter
\pagestyle{fancy}

\setcounter{chapter}{0}
\foreach \n in {1,...,36}{\chapter{A long long long long long long long long long long long long long long long long long long long long chapter title which is totally boring}\blindtext[10]}

\end{document}