- Math Symbols -
The Most Valuable and Important Grouping Symbols Used:
Background - why math symbols are used. . .
Symbols are a concise way of giving lengthy instructions related to
numbers and logic.
Math Symbols are an invention, not a discovery. They are a
communication tool. Symbols are used to eliminate
the need to write long, plain language instructions to describe
calculations and other processes.
The most valuable, most frequently used Symbols in mathematics . . .
The most important, most frequently used Grouping symbols
are listed below.
Square Bracket Symbols (also called Box Brackets) -
Left "[" square brackets, and right "]" square brackets are used together. They can be interchanged with parenthesis or braces.
However, if there are three levels of grouping in a nested expression, generally parentheses are used in the inner most groupings.
Square brackets are used in the next higher level grouping, and braces are used in the most outer groupings (see "Nested expressions" for an example).
Examples using square brackets
. . . Click here to see the three examples demonstrating the use of parentheses.
. . . Replace the parentheses with square backets in the
mathematical expressions illustrated.
. . . The step-by-step procedure for evaluating expressions using square brackets is exactly the same as the step-by-step procedure for evaluating expressions using parentheses . . .