Characters Qualifying a formula

Giganews Newsgroups
Subject: Characters Qualifying a formula
Posted by:  Tevuna
Date: Thu, 23 Aug 2007

Usually all formulas start with an equal sign (=) Other characters too have
some special meaning in that when entered instead of the equals sign, Excel
entered the equals by its self and, sometimes, removes that character. For
example minus, plus, or @.
Is a list of all meaningful character available somewhere?