英語文を書くとき、タイトルや節タイトルでいくつか書き方がある。
- 文頭だけ大文字： Can quantum-mechanical description of physical reality be considered complete?
- すべて大文字： CAN QUANTUM-MECHANICAL DESCRIPTION OF PHYSICAL REALITY BE CONSIDERED COMPLETE?
- 単語の1文字目だけ大文字： Can Quantum-mechanical Description of Physical Reality Be Considered Complete?
3番目がよくあるのだけど、このときどれを大文字にしてどれを大文字にしないのかのルールが Springer: TEX 2ε Class for Lecture Notes in Computer Science Version 2.4に書いてあったのでメモ。毎回読んで毎回忘れてしまう。
タイトル部分の注意事項（5 How to Code the Beginning of Your Contributionより）
All words in titles should be capitalized except for conjunctions, prepositions (e.g. on, of, by, and, or, but, from, with, without, under) and definite and indefinite articles (the, a, an) unless they appear at the beginning.
上記を箇条書きで書くと以下のとおり。
- すべての単語の1文字目は大文字にする
- ただし、以下の単語は文頭でなければ上記の例外とする
- 接続詞（例 and, or, but)
- 前置詞
（例 on, of, by, and, or, but, from, with, without, under)（例 on, of, by, from, with, without, under) - 冠詞（the, a, an)
ついでに大文字にするケース「4.2 Capitalization and Non-capitalization」より。
- The following should always be capitalized:
- Headings (see preceding Sect. 4.1)
- Abbreviations and expressions in the text such as Fig(s)., Table(s), Sect(s)., Chap(s)., Theorem, Corollary, Definition etc. when used with numbers, e.g. Fig. 3, Table 1, Theorem 2. Please follow the special rules in Sect. 4.3 for referring to equations.
- The following should not be capitalized:
- The words figure(s), table(s), equation(s), theorem(s) in the text when used without an accompanying number.
- Figure legends and table captions except for names and abbreviations.
