The rotation tag is used for challenges related to rotating or shifting elements in an array, matrix, or string in Code Golf Stack Exchange.

The rotation tag is used for challenges where the goal is to rotate or shift elements in an array, matrix, or string in the fewest number of characters possible. These challenges often involve manipulating indices or using built-in functions to perform the rotation. Common types of rotations include circular shifts, transpose, and 90-degree rotations. This tag can also be used for challenges involving rotations in higher dimensions, such as rotating a cube in 4D space. Use this tag for challenges involving any kind of rotation or shift, but be sure to also include more specific tags if applicable.