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Computation,Finite Automata,DFA,NFA,notations

      My Old Google site: Click("https://sites.google.com/site/cse09506mesce/home")

         1) Computation is the sequence of steps performed by the computer.

        2)Computation is the process of execution of an algorithm that involves take some inputs and apply some operation then will get some output. Output may be accepted or rejected based on the input string.



In My point of view eg:
       In neural network we having inputs,operation and outputs....Operation may be called as activation function.


          The word automata  comes from greek word automata that means "self acting".

self acting->Something is doing something by itself.

          we will see the term Automata.

 Automata-> is the study of abstract computing devices or machines.

Finite Automata-> is the mathematical model of a system with descrete inputs and ouputs.

FA divided into 2. 

DFA and NFA

DFA means Deterministic Finite Automata . 
From one state to another only one input symbol is using.

NFA means Non-Deterministic Finite Automata. 
There may be more than one transition from one state to another using same symbol.


DFA
5tuple(5 elements)
M=(Q,Sigma,Delta,q0,F)
Q->Finite number of states
Sigma->Finite number of symbols.

        Start State
     Final State
  Transitions
Example:


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