How to type tilde in latex

In this chapter we will tackle matters related to input encoding, typesetting diacritics and special characters.

In the following document, we will refer to special characters for all symbols other than the lowercase letters a–z, uppercase letters A-Z, figures 0–9, and English punctuation marks.

Some languages usually need a dedicated input system to ease document writing. This is the case for Arabic, Chinese, Japanese, Korean and others. This specific matter will be tackled in Internationalization.

The rules for producing characters with diacritical marks, such as accents, differ somewhat depending whether you are in text mode, math mode, or the tabbing environment.

New line in latex

Input encoding

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TeX uses ASCII by default. But 128 characters is not enough to support non-English languages. TeX has its own way of doing that with commands for every diacritical marking (see Escaped codes).

But if we want accents and other special characters to appear directly in the source file, we have to tell TeX that we want to use a different encoding.