Cn×m
Cn×m refers to a matrix with n rows and m columns. Matrices are fundamental mathematical objects used extensively in linear algebra, computer graphics, and many other fields. The notation "Cn×m" specifically indicates the dimensions of the matrix, where 'C' represents the collection or set of such matrices, 'n' denotes the number of rows, and 'm' denotes the number of columns. For example, a 2×3 matrix would have 2 rows and 3 columns. The elements within a matrix are typically numbers, but they can also be other mathematical objects. Operations like addition, subtraction, and multiplication can be performed on matrices, provided their dimensions satisfy certain rules. The concept of a matrix is crucial for representing systems of linear equations, transformations in geometry, and data in various scientific disciplines.