Rotation matrices are matrices that are used to perform rotations in three-dimensional space. These matrices can be used to rotate objects or coordinates around a specified axis. Rotation matrices have properties such as orthogonality and determinant equal to 1, which allow for efficient and accurate rotation operations. They are often used in computer graphics, robotics, physics, and other fields where precise rotations are required. Rotation matrices are a key concept in linear algebra and are widely utilized in various applications to manipulate and transform objects in three-dimensional space.