(operations)
Parentheses are used to change the order of operations of an expression. For example, 2+2*2 is 6, since multiplication is performed before addition. However, (2+2)*2 is 8, since the addition is performed before multiplication.
:function(params)
A closing parenthesis is also often used to end a function call. Like √(4+5 is 3, but √(4)+5 is 7.
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for left one
- (
for right one
- )