The right logo tells both customers and potential customers a lot about the practice instantly, without much conscious thought on their part. Just as the five-year-old knows that sign means delicious food is near, you want your medical logo design to symbolize what your practice is about.
In the American English, bracket usually refers specifically to the square or box type. In British English, bracket normally refers to the round type, which is called a parenthesis mark in American usage. Parentheses are the curved brackets ( ).
The square brackets are used for structured references, which make it easier to reference data in named tables (which you can create by going to Insert â Table). The @ is new notation in Excel 2010 replacing [#This Row] from Excel 2007. The at symbol is used to shorten formulas inside named tables referencing cells in the same row. The inner square brackets are only needed because your bar foo table heading contains a space.