\squareThe \square command in LaTeX is used to produce a square symbol, often used in mathematical contexts to denote the end of a proof (also known as a tombstone or halmos) or to represent a square in geometric figures.
Used to denote the end of a proof for the Pythagorean theorem.
Pythagorean theorem: a^2 + b^2 = c^2 \squareIndicates the conclusion of a solution or proof.
\text{The solution is correct.} \squareRepresents a geometric square named ABCD.
\square ABCD