Text formatting codes for Greek characters and other symbols

[Namir]

Paul Dale sent me text, in other of the threads, that included a Greek character. I looked at the source code and was able to determine that it is related to information found in ShareLaTeX web site. The raw text code used in this web site is a variant of the codes listed in ShareLaTeX. Is there a document or web site that spells the exact character codes for Greek letters (lowercase and uppercase), math symbols and operators, and other symbols, that can be applied to messages in this web site?

For example:

Code:

\( \Phi\)

Generates the uppercase Greek Phi character \( \Phi\).

Likewise:

Code:

\( \phi\)

Generates the lowercase Greek Phi character \( \phi\).

Namir