One of the symbols ( or ) used to denote grouping. Parentheses have actually a great many devoted meanings in mathematics. A couple of of this are explained below.

You are watching: What does parentheses around a number mean

1. Parentheses are used in mathematical expressions to denote adjustments to normal order of to work (precedence rules). In one expression choose

*
, the part of the expression in ~ the parentheses,
*
, is evaluated first, and then this an outcome is provided in the rest of the expression. Nested parentheses job-related similarly, because parts of expressions in ~ parentheses are also considered expressions. Parentheses are additionally used in this manner come clarify stimulate of to work in confound or abnormally large expressions.

2. A parenthesis deserve to be offered to represent an open finish of an interval. Because that example,

*
denotes the half-closed expression which includes all genuine numbers native 0 come 5 except 5 itself.

3. Clip are offered to enclose the variables the a role in the type

*
, which method that worths of the duty
*
room dependent top top the worths of
*
.

4. Huge parentheses roughly two numbers, one over the other, denotes a binomial coefficient

*
.

5. Parentheses roughly a set of two or much more numbers, together in

*
, signify an
*
-tuple that numbers that are attached in some distinct way.

6. Huge parentheses around an array of numbers, e.g.,

*
indicate a matrix. (However, in this work, the price
*
" /> is provided instead.)

7. Parentheses may likewise be used to denote the greatest common divisor, e.g.,

*
.

8. Parentheses are offered to denote a congruence, as in

*
.


SEE ALSO: angle Bracket, Brace, Bracket, Complexity, Square Bracket
REFERENCES:

Bringhurst, R. The aspects of Typographic Style, second ed. Suggest Roberts, WA: Hartley and also Marks, p.282, 1997.

Grossman, J. (Managing Ed.). "Parentheses." §5.123-5.5.127 in The Chicago hand-operated of Style, 14th ed. Chicago, IL: college of Chicago Press, pp.189-190, 1993.


Referenced on centregalilee.com|Alpha: Parenthesis
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