\undergroup{AB} - LaTeX Symbol

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A B

\undergroup{AB}

The command \undergroup{AB} is used to place a horizontal line (or group) under the specified text or mathematical expression. This is often used to emphasize or group terms together visually in mathematical expressions or equations.

Examples

A B + C D

Emphasizing the group AB in an expression.

\undergroup{AB} + CD

x = a + b + c

Grouping the terms a and b together under a line.

x = \undergroup{a + b} + c

\frac{1}{2} + \frac{3}{4}

Underlining fractions to emphasize them as a group.

\undergroup{\frac{1}{2}} + \undergroup{\frac{3}{4}}