4.6.2 intmat expressions

An intmat expression is:

1. an identifier of type intmat
2. a function returning intmat
3. an intmat operation involving ints and int operations (+, -, *, div, %)
4. an expression involving intmats and the operations (+, -, *)
5. a type cast to intmat (see intmat type cast)

Example: See Type conversion and casting; number.