The routines in this chapter enable you to perform matrix operations
such as copy, add, multiply matrices, calculate determinants, obtain
an identity matrix, obtain the transpose of a matrix, etc. Matrix
operations can be performed on 2 x 2, 3 x 3, and 4 x 4 matrices.
The names of the matrix functions describe the dimension of the matrix.
For example, functions of the form UF_MTX2_<name> apply to 2 x 2 matrices.