Where can I find a table which shows the LaTeX commands for each Unicode Character?

Question

Where can I find a table which shows the LaTeX commands for each Unicode Character if such a command exists?

For example the LaTeX command for ∈ is \in

Answer 1

The list of math-mode symbols is “Symbols Defined by Unicode-Math.”

Many of the symbols listed under the Body Text section of “The Comprehensive LaTeX Symbols List” will map to Unicode if fontspec is loaded. In particular, those listed under LaTeX and textcomp are now enabled by the LaTeX kernel. Others require an additional package, such as textalpha for Greek or tipauni for the International Phonetic Alphabet.

In text mode, most Unicode symbols can be entered into the UTF-8 source. LuaTeX and XeTeX should just work, if you select a font that supports all the characters you use. PDFLaTeX only supports precomposed characters, not combining accents, and generally requires you to load an 8-bit font encoding that contains the character.

You can define any missing Unicode symbol yourself, with the newunicodechar package.

Finally, you can also request a given Unicode codepoint with ^^^^12ab, \char"12AB or \symbol{"12AB}.

Answer 2

Here is a table, but this is a community wiki and needs to be edited to be complete.

LaTeX	Unicode Escape Sequence	Human Readable
\alpha	\u03B1	α
A	\u0391	Α
\approx	\u2248	≈
\ast	\u2217	∗
\alpha	\03B1	α
\beta	\u3b2	β
\bigcap	\u22c2	⋂
\circ	\u2218	∘
\cdot	\u22c5	⋅
\cdots	\u22ef	⋯
\???	\u21ab	↫
\???	\u21ac	↬
\???	\u21b6	↶
\???	\u21b7	↷
\???	\u21ba	↺
\cwopencirclearrow	\u21bb	↻

Rows are sorted based on the leftmost letter in the LaTeX command if case (lower or upper) did not matter and all backlashes are ignored.