Fibonacci in Mathematica

Welcome to the Fibonacci in Mathematica page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

(* Code *)

(* It would be easy to simply print these out in a 'for' loop; however, in the spirit
of keeping the mathematical operation separate from the UI I opted to return
the Fibonacci sequence as a list explicitly: *)

fibonacciSequence[0] := {} (* special case *)
fibonacciSequence[1] := {1} (* special case *)
fibonacciSequence[n_] := Nest[Append[#, #[[-2]] + #[[-1]]] &, {1, 1}, n - 2]

(* The outer function provides the 'user interface': *)

fibonacciSequenceMain = Function[n,
   Catch[
    Module[{s},
     s = fibonacciSequence[
       (* convert string to integer, or throw *)
       If[StringMatchQ[n, DigitCharacter ..],
        FromDigits[n],
        Throw[
         "Usage: please input the count of fibonacci numbers to output"]]];
     Do[Print[i, ": ", s[[i]]], {i, Length[s]}]]]];


(* Valid Tests *)

fibonacciSequenceMain /@ {"1", "2", "5", "10"};


(* Invalid Tests *)

fibonacciSequenceMain[""]
fibonacciSequenceMain["word"]

Fibonacci in Mathematica was written by:

• Ben Hekster

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.