Today, I thought it would be useful to revise some symbols. We sometimes use symbols in our writing e.g. we use @ for at in our e- mail addresses somewhere. On our keyboards we can use € for euro, ₤ for pound, and $ for dollar. We might even squeeze in a number (i.e. #) or shorten and to &. We also use % for percent and = for equals, also > for greater than and < for less than.
A star (asterisk) (i.e.*) is a reference mark used to indicate an explanatory sentence or paragraph at the bottom of a page. A * is also used to replace a letter or letters left out in swear words to avoid them becoming objectionable, yet conveying the same force meant by the speaker e.g. He replied, “Don't be such a b***** fool!” We can also use a * for example when talking about a 3* hotel. An asterisk is often used to mean multiply in programming languages.