<prompt> Passage: Matrix groups consist of matrices together with matrix multiplication. The general linear group GLn, R consists of all invertible n-by-n matrices with real entries. Its subgroups are referred as matrix groups or linear groups. The dihedral group example mentioned above can be viewed as a very small matrix group. Another important matrix group is the special orthogonal group SOn. It describes all possible rotations in n dimensions. Via Euler angles, rotation matrices are used in computer graphics.Representation theory is both an application of the concept of the group and important for a deeper understanding of groups. It studies the group by its actions on other spaces. A broad group of representations are simply linear representations, i.e., the group is acting on a three-dimensional vector space, such as the Euclidean space. A class of representations is simply linear representations, i.e., the group is acting on a three-dimensional vector space, such as the Euclidean space.  <response>: ndogo sana 