The etymological root of parenthesis It is in the Greek parenthesis, which can be translated as "intercalation" . Saying finished it came to late Latin as parenthĕsis.
The parenthesis is a double spelling sign which allows to demarcate those linguistic units that introduce clarifications or complementary data in a message . The content in parentheses, therefore, is not the main one.
Let's see a example : “Last night, in a match corresponding to Group E of the World Cup, Brazil won 3-0 to Russia. Two goals were scored by Neymar (one penalty) and the remaining by Arthur ”. As you can see, the use of parentheses makes it possible to clarify that one of the goals scored by Neymar It was through a criminal shot. If the content of the parenthesis is removed, the expression would still have meaning. In contrast, the parenthesis alone does not allow the understanding of the information.
It is also called parenthesis to supplementary prayer that interrupts a statement without modifying its sense . When someone, in the middle of a speech, makes a parenthesis, makes a comment that has nothing to do directly with the message: "In the framework of his conference on global warming, the scientist made a parenthesis to tell an anecdote of his childhood".
In the mathematics Finally, the parenthesis is the sign that indicates that a certain operation must be performed over the entire expression:
3 x (4 + 3 + 5 - 2)
As you can see, the addition and subtraction operation placed in parentheses must be fully resolved and then continue working with that result .