Using the variables of the citizens in constructing a city

 

In constructing a poly city, we need some known quantity or information, a value. The variable name is the usual way to reference the stored value; this separation of common information will allow the poeple in the city to be used independently of the exact information their common variables 

represents. These information will determine the arrangement  and the value of the variable may thus change. The value of a the individual variable of the people in the city become a part of the generalised variables  a variable may be employed in a repetitive process: assigned a value in one place, then used elsewhere, then reassigned a new value and used again in the same way.