Recursion

Recursion is the process of repeating it-self in its own way. The term is very vast and has many implications. If we are taking about practical implementation of recursion we can take two parallel mirrors facing each other, now we will see so many mirrors in those two parallel mirrors thats because of recursion. The process of recursion is basically used in mathematics and computer science.
Recursion in discrete mathematics can be defined as the process of defining a term in terms of itself( or the part of itself) . As Q(n) could be recursive in Q(n+1). there are also recursive definitions, functions, sequences, sets and algos. Recursion in discrete mathematics is a bit strange to understand but once it is in process it can be the most powerful way of expressing some processes.
If we express z as z+1 and z+2 and so on then it is recursion discrete mathematics expressed in its own way of repeating the term but with a little change. Here we an also say recursion discrete mathematics also follows the two specific rules or repetition.
First the term should repeat itself at a particular interval of time .
Second is that the repeating term must have some changes at some specific values if necessary. If change not applicable we do not put it into action.
The recursion that repeats itself at a particular time of interval without any dis-formation is known as linear recursion and the recursion that has some dis-formation or changes at some particular time of interval is called non- linear recursion.
Here recursion is a process of repeating terms in its own way and the nature of recursion of any term is known as recursive or recursive in nature. In mathematics we can create recursive Functions. And we often call these as recurrence Relations or recurrence Set.