EXPRESS definition: =================== The number data type has as its domain all numeric values in the language. The number data type shall be used when a more specific numeric representation is not important. Syntax: 248 number_type = NUMBER . EXAMPLE 15 - Since we may not know the context of size we do not know how to correctly represent it, e.g. the size of the crowd at a football game would be an integer, whereas the area of the pitch would be a real. size : NUMBER ; Python definition: ================== class NUMBER is an abstract class, aimed at being specialized.