1


relations: From the syntactic point of view, a relation is a list of objects of type x->y. It can be said that x is an index, y is its associated value and x->y is a pair within the relation. The most important aspect of relations is that they permit the user to retrieve the value (or sequence of values) associated with an index. This is achieved by applying the object to the relation. If an object does not have an index associated with a relation, the result of applying it to the relation is null.

The symbol -> can be created using the icon .





mathsformore.com powered by WIRIS

©2003 maths for more sl. All rights reserved. Legal notice