Positional representation system and System of numeration

Positional representation system noun - A numeration system in which a real number is represented by an ordered set of characters where the value of a character depends on its position.

System of numeration and positional representation system are semantically related. In some cases you can use "System of numeration" instead a noun phrase "Positional representation system".

System of numeration noun - Any notation for the representation of numbers.

Positional representation system and system of numeration are semantically related. Sometimes you can replace phrase "Positional representation system" with "System of numeration", this phrases are similar.