\lparen \rparen - LaTeX Symbol

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\lparen \rparen

The `\lparen` and `\rparen` commands in LaTeX are used to create left and right parentheses, respectively. These are often used in mathematical expressions to group terms or to denote function arguments. Unlike the regular parentheses, these commands ensure that the parentheses are properly sized to fit the content they enclose, which is particularly useful in complex mathematical expressions.

Examples

(a + b)^{2} = a^{2} + 2 ab + b^{2}

Expanding a squared binomial using parentheses to group terms.

\lparen a + b \rparen^2 = a^2 + 2ab + b^2

f (x) = x^{2} + 2 x + 1

Function notation using parentheses to denote the argument of the function.

f\lparen x \rparen = x^2 + 2x + 1

(\frac{1}{n}) i = 1 \sum n x_{i}

Using parentheses to enclose a fraction in a summation expression.

\lparen \frac{1}{n} \rparen \sum_{i=1}^{n} x_i