Pascal Subprogram Of Fibonacci Series Using Function

The Fibonacci series is one in which the addition of two previous terms gives you the next term. That is. 0,1,2,3,5,8,13....1 + 2 is the next consecutive term which is 3, so is 3 + 5 (8)the next term.

This program uses a function subprogram to call by value.

Program Fibnacci;
Var
I : integer;
Function fibonacci (a: integer): integer;
Begin
If a=1 then
   Fibonacci :=0
Else if n=2 then
    Fibonacci :=1
Else
    Fibonacci := Fibonacci(a-1) + Fibonacci (n-2);
End;
Begin
For I:= 1 to 20 do
Writeln(Fibonacci (I));
Readln
End.

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About Grace Joseph

Grace Joseph is from Cross River State, Nigeria. She studied Computer Science in University of Calabar and has great passion for writing, technology and blogging.

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